disgustingly rude

I entered the service department at 15h45 after dropping off my vehicle at 7 am. The Service Manager told me that the car will be ready in 15 minutes reason being that commercial vehicles get priority. I then told him that I will not be using that branch again. He then raised his voice at me in full view of other waiting customers. After about 40 minutes I asked him how much longer do I need to wait. He the says \YOU will receive the vehicle when it is ready". I told him that his statement is unacceptable and he said \""ok\"". After persisting he then became aggressive and approached me. He then went on to say \""You People\"" at which time he was in full view and hearing distance to the other customers. He then said that he shouldn't say anything further. I told him that I will contact customer services and he asked me if I wanted to use his phone. I found this c****** and will never buy another Hyundai. Yes I will be contacting customer service so that other customers don't have to be embarrassed and belittled by astonishingly the SERVICE Manager. .. disgusted"""