My favorite trash law was in Illinois (where I grew up). They made dumping AND PICKING UP garbage illegal. The reason we were told is there was a lot of illegal dumping (true). The smarter dumpers would have a lookout, and when a car approached, they would start LOADING up trash. So when the cop pulled over and confronted them, the standard answer was "Hey, I am trying to clean this place up, look, I already have half a truck load!!!" And of course, once the cop was out of sight, they went back to dumping their trash...