Unprofessional and Rude

The guy at the Golden car, Bordeaux airport was very unprofessional I would say, bully. It all started when I said that I was not interested in buying a new excess car insurance, as I already had a third party one. He criticized me and insisted over and over to buy a new one from him, after more than half an hour of discussion with him, he said that I would very likely have an accident, that my insurance was not good, that they would not pay me back and so on (my wife at some point left the counter as she could no longer handle it) He said he would not tell me where the car was, that I had to figure out myself as I did not buy the insurance, so he wouldn't care about me. He told me that in addition to having to find the pick-up location and the car I had to mark any damage and come back, otherwise, I would have to pay for any damage and show me the list of prices of different car parts. I had to go to the pick-up location and mark all damages present in the car, that included a broken mirror, and come back, all this took more than one hour, We left the airport feeling insulted, distressed and upset.