You Do Not Have to Be Driving
One of the hardest things for people to believe about Florida DUI law is that you can be convicted without ever moving the car. Section 316.193 reaches anyone who is driving or in actual physical control of a vehicle while impaired, and that second phrase is what lets an officer arrest a person found behind the wheel of a parked, even switched-off, car. The law was written this way on purpose. As the court put it in Griffin v. State, 457 So. 2d 1070 (Fla. 2d DCA 1984), the point was to let police reach the impaired driver before he strikes, rather than waiting for the crash.
What Actual Physical Control Means
Florida’s standard jury instruction defines actual physical control as being physically in or on the vehicle and having the capability to operate it, whether or not you are operating it at the time. The operative word is capability, and Florida courts read it as practical ability, not mere theoretical possibility. So the question is rarely whether you were driving. It is whether, drunk and asleep in that seat, you had the realistic present means to start the car and go.
The Factors a Court Weighs
Because there is no bright line, courts decide actual physical control on the totality of the circumstances. In State v. Fitzgerald, 63 So. 3d 75 (Fla. 2d DCA 2011), the court framed the recurring factors as the possession of the key or proof the vehicle could run without one, the person’s presence in the driver’s seat, and proof that the vehicle was operable to some extent. In practice the analysis also takes in where you were sitting, whether the engine was running, how the car came to be where it was, and what condition you were in. None of these alone decides it, and that is exactly what makes these cases winnable.
| Factor | Points toward control | Points away from control |
|---|---|---|
| The keys | In the ignition or in your hand | Outside the car, or well out of reach |
| Your position | In the driver’s seat | In the back seat, or reclined to sleep |
| The vehicle | Running, or readily operable | Disabled, broken down, or out of fuel |
| How it got there | No explanation for why you stopped | Pulled over on purpose to sleep it off |
Actual physical control is decided on the whole picture, so one strong fact in your favor can be enough to raise a doubt.
The Scenarios That Lead to These Charges
Actual physical control arrests cluster around a handful of fact patterns: the driver who falls asleep at a red light, the person who nods off in a fast-food drive-through line, and the one who does the responsible thing and pulls over to sleep it off rather than keep driving. There is a real unfairness built into that last one. A person who recognizes they should not drive, parks, and climbs into the back to sleep can still be arrested, which is why showing what you were truly doing, and what you could not have done, matters so much.
The Inoperability Defense
If the vehicle could not be driven, it is hard to say you had the capability to operate it. Florida recognizes an inoperability defense, and proof can come from repair records, photographs, a dead battery, an empty tank, or expert testimony about the vehicle’s condition. There is a limit. Inoperability is not a defense if you were driving under the influence before the car became disabled, and a separate crash exception can allow a warrantless DUI arrest even with a disabled vehicle where there was a collision, a point the First District addressed in State v. McCartha, 372 So. 3d 754 (Fla. 1st DCA 2023). Whether the inoperability defense fits depends on how and when the vehicle stopped working.
The Keys, and the Keyless Problem
Where the keys were is often the single most important fact, and modern cars have made it more interesting. With a keyless ignition, the fob may be in range without being in your hand or even inside the car, which raises a real question about whether you had control at all. Proximity to a fob is not the same as the ability and intent to operate the vehicle, and that gap is worth pressing. When the keys, or the fob, were not where they needed to be to start and move the car, the State’s theory of control gets thin.
When Police Never Saw You Drive
There is a second front in these cases that has nothing to do with the keys. For a misdemeanor DUI, an officer generally cannot make a warrantless arrest unless the elements happened in the officer’s presence, and a civilian’s account that you were driving or in control, which the officer never confirmed, does not supply that. Florida courts have thrown out arrests on exactly this ground in Steiner v. State, 690 So. 2d 706 (Fla. 4th DCA 1997), and Sawyer v. State, 905 So. 2d 232 (Fla. 2d DCA 2005). So an actual physical control case can be attacked from two directions at once, whether you had control, and whether the officer could lawfully arrest you for it. The way the stop and arrest unfolded is part of the same fight.
Related: The DUI stop, The refusal and your license, and Field sobriety exercises.
I started out as an Assistant Public Defender in Florida’s Thirteenth Judicial Circuit, in Tampa, and today I am one of six ACS-CHAL Forensic Lawyer-Scientists in Florida. Every DUI I take gets rebuilt from the first contact forward, the stop, the exercises, the arrest, and the test, because a problem at the front of the case reaches everything that comes after it. Learn more about my background.
Common Questions
Can I get a DUI in Florida if I was not driving?
Yes. Section 316.193 reaches anyone in actual physical control of a vehicle while impaired, even one that is not moving. Sleeping in a parked car can lead to an arrest, though whether you were truly in actual physical control is a fact question with real defenses.
What does actual physical control mean?
Florida's standard jury instruction defines it as being physically in or on the vehicle with the capability to operate it, whether or not you are operating it at the time. Courts read capability as practical present ability, decided on the totality of the circumstances rather than any single fact.
Is sleeping it off in my car a defense?
It can help, but it is not automatic. A person who parks and climbs into the back seat to sleep can still be charged, so the defense lies in the facts, where you were sitting, where the keys were, and whether the car was operable. Those details can show you did not have control.
Does it matter if my car would not start?
Yes. Florida recognizes an inoperability defense, since you cannot have the capability to operate a car that cannot run. It does not apply if you were driving while impaired before the car became disabled, and a crash can trigger a separate exception, so timing matters.
The police never saw me drive. Can they still arrest me?
Often they cannot, at least not without a warrant. For a misdemeanor DUI the officer generally must witness the elements, and a civilian account the officer never confirmed does not supply that. Florida courts have suppressed arrests on this ground in Steiner v. State and Sawyer v. State.
This page is general information about Florida law, not legal advice, and it does not create an attorney-client relationship. Driving under the influence is defined in section 316.193, Florida Statutes, and actual physical control is addressed in Florida Standard Jury Instruction 28.1 and the decisions discussed here, all of which are fact-specific. Outcomes depend on the particular record, and the law changes, so confirm current requirements with an attorney. Past results do not guarantee a similar outcome.

