I have not looked into these laws so don't quote me. This is what I was told.
I agree it is kind of retarded. Granted, there should be a few restrictions as far as what roads they can travel on, but I don't see where it would hurt except for crashability. The auto is going to win everytime but then again that is the operators choice. Same thing with 4wheelers. I'd love to see those road legal. Heck, I'd ride one year round!