People just don't care. It is all about them. We spent the week in Kentucky. Our site was in front of the playground. The way my truck was parked left a good size opening between our 5er and the Neighbors TT. People used it as a walkway to get to playground. Not only a walkway but a path for golf carts. Only because they did not want to go an additional 200 feet to go around.
A few asked when we were sitting outside. But still where is the etiquette. I could only imagine what was going on when we were gone.