I don't recall the original post on this. You are great sons to be so involved in helping your dad. It doesn't sound like Dad is able to live on his own. At this point, with him on the road driving, he is a danger to others as well as himself. This is serious. He needs full time care. This is a tough time in his life, but somehow he needs to be convinced that he's not the independent old bull he used to be and get him to accept help.