I had some college age campers across the street from me this past week. They had a popup towed by a small pickup and their other vehicle was daddy's BMW 7 series. Initially they parked the BMW on a dune next to their site. I reported this to a ranger and they did move it, but left it 3 feet out in the road. This road isn't wide and they were on the inside of a slight turn. I was concerned that a large MH or 5'er would tag their car so I mentioned this concern to them. They did pull the front of the car off of the road,but left the rear still 3 feet in the road.
They clearly had no clue so I just ignored them after that. Fortunately they left yesterday.