I have seen people camping in their boats a few times. A few years ago there was about a 35' offshore cabin cruiser in the 100 loop. This boat was huge and on a tractor trailer type rig. The tractor was in the overflow lot and the boat and trailer totally filled the site. They had a 10' stepladder they used to get in and out of the boat. I would have loved to see how they got it in or out of the loop. It looked so out of place. I wish I had taken pictures.