Same with public drunkenness.It's called a wet & reckless out here.
If you've been drinking and want to sleep it off in your car, make sure you put the car keys in the glove box or divider. If you have them on your person, that's considered intent to drive, so you're charged with a DUI, that gets plea bargained down to the W&R.
You don't get in as much trouble as you would with a DUI.
Happened to a friend of mine, I think it's another way for the county to grift money out of you.