1. I'm sure there are people in cars in EVERY hotel parking lot at pretty much any hotel in the country.....
being in a parked car is not even probable cause according to the law....
so the assumption of trespassing is the cops PERSONAL judgement...
personal bias plays into this equation
2. no you don't have to hand over your ID.... as the gentleman in the video obviously proved by not doing so.
I'm sure there are people in cars in parking lots at hotels at night and how do you know the cops don't approach them too? not all interactions like this are recorded.
I don't know a whole lot about the law but wouldn't a person in a parked car on private property at night be probable cause?