Refusing to serve a customer

Recently there was an incidence in a coffee and ice cream shop where two cops were refused service and were told by one of the clerks that he does not serve cops. There was an outrage over this as the owner of the shop tried to play things down and apologize stating that the layout of the shop was confusing and there must been a misunderstanding in this whole situation. Although the cops are not buying this story about what the owner said and I think they are right. This is not the first instance that copes have been denied service by a food shop as the climate of hostility towards law enforcement is at very high right now. I can understand that some of the cops may have not upheld the best of the behavior that their uniform demands and for which they have been trained for but you cannot blame the entire police force for the misconduct of the few. For a scenario, how would it feel if the same people who refused service to cops need them for something legal, like a break in or a accident or just calling 911 of for protection, how would they feel if the cops say that they do not want to serve fast food people (it has mostly been in the fast food industry that is why I am bringing them up) because they had bad experience with them or whatever reason they can come up with. A customer is a customer and if you are in the business of face to face contact with them, you should keep your political and personal vies our of your place of employment or be prepared to be served with the same kind of response down the road. Because as the saying goes karma is a bitch (excuse my language had to put it out like it is)