Bad Dealer

I went with my son to buy his first car and was trying to get the process over because my son was driving me crazy.I went to a dealer and I was not impressed with them at all but kept my mouth shut because my son needed to learn he is grown and I can't tell him anything anyway. When it was all over the dealer wants  you to fill out a survey suppose to be confidental and he did and really gave the dealer bad review. So the next time my son went to the dealer he went to pick up some keys they owed him and get it surviced. He walked behind the salesman to the sales manager to get his key when he told the manager her is the guy that slaimed us on the survey and from there made rude remarks and gestures. I have wrote Nissian but still have not got a response. So beware of the survey with Nissian