My previous employment on a caravan park, we had a number of customers who would drive back to their vans after a few drinks in the bar. They always tried to reason it as being “on private ground, it’s ok”
It wasn’t ok, and we had to remind them constantly.
One of our customers drove in one day and flattened the entrance sign.
Another time I had to stop a customer teaching her 12 year old grandson how to drive