Bad treatment and **************

So I just got a new job not that am earning millions but in the next two years I will be buying a car. So I decide to go check out cars at BMW Sandton (south Africa) as I am just starting to view cars this rude security guard starts telling me that I am not allowed to be in the building I must have made an appointment to come inside the building and then I asked when did you start having this rule he says since forever and now am shocked because I've been to the dealership before and no one has told such nonsense when I thought he was done being rude he starts telling am going break something in the car and am going to run away without telling anyone???? I mean such **************??? I don't know whether if it's because am young and black... My brother owns a BMW and now all of a sudden am going break something by just viewing a car as if I didn't grow up with cars at home! I've never in my life feel so discriminated and disrespected for just wanting to view a damn car! I don't think I will ever buy a car from BMW Sandton let alone recommend anyone to that dealership! I mean how do buy a car you haven't viewed or let alone feel the comfort! I am very disappointed with what happened today...