In many states, just having the keys in the ignition, while drinking near your pickup or sleeping it off in the back constitutes dui/dwi.
I am kind of surprised up there they don’t have a warm up law. I know New Mexico changed recently so a drunk can run the engine for heat. Cant remember the details but I think you cant be in the drivers seat or some such.
But they decided that someone legitimately just running the heater shouldn’t be a crime. But drunk at the controls with engine running, and like this guy, with car in reverse, usually gets you a dwi.