Had one today, though the offender was not an RVer.
At the dump area of the SP we were at last night there is a "Absolutely NO Parking" sign so that rigs, especially larger ones, can make the turn around & get into the dump area.
I arrive to find a red mini van parked right below the sign & not even close to the side of the road. A few hundred feet away I spot 2 people walking away from the area. I lean on the horn which gets their attention. I point to the minivan which gets a hand raised in response.
More than adequate parking for cars is available not 30 seconds addditional walk time away BTW.
Back he comes. I point to the dump. "I thought you could go into it the other way" says Mr Lazy. Now we all know that RVs dump on the driver side don't we, not the passenger side.
I inform Mr Lazy that signs are placed for a reason & RVs, especially large ones cannot get to the dump if his vehicle is parked there not 10' from the "NO PARKING AT ANYTIME" sign.
Lucky I did not get the one finger salute I guess. Rather than go park where he should have in the first place he decided he did not want that walk in the park & left.
You see it all the time. It is the 'all about me' attitude. First at the buffet line, first off the plane, got a handicapped tag when they are perfectly capable of walking. To heck with everyone else.