The problem with asking forgiveness is if you have an accident and you are not properly licensed you could have big issues. I got a CDL 3 years ago for exactly this reason. It used to be 10000lb trailer and a combined 26,000lb vehicle but it looks like they closed it up a bit. You want to knowthe real scarey part think about that 80 year old man going down the road with airbrakes on his coach that he knows nothing about.