That sounds like a difficult situation with your son. My step-son doesn't understand some things the wayothers do also. He speaks very formerly and businesslike. If I don't have both hands on the steering wheel of the car, he informs me of my error. It can be awkward for me, but he isn't shy about telling his friends and others that he is an Aspergers kid. Rules are difficult for him to understand and it frustrates him that they aren't rigidly followed.