In PA it is a $105~ fine if you have it in without a trailer attached. One of the 'rumors' is it was pushed through the legislation with insurance company influence. Their reason's being it causes more damage to the vehicle that would hit the hitch. Instead of just some bumper work, now we are looking at bumper, hood, radiator, condenser, transmission cooler, pulleys, belts, blocks, etc. I still have mine in for the exact reasons mentioned in other posts. Went to Wal-Mart with my dad's 01 when it was a week old. Come out and a guy walks up and says is that your truck? Yep, my toyota must have popped out of gear and drifted into your truck. Big old dent in his front bumper and a small scrath on the pintle in our truck. I have not been pulled over for it, but would think they (LE) will add the fine to any other moving violation. I think Sledpuller put a thread up about this in PA a while ago.
Thomas