I wonder if these officers were Black or maybe a salt and pepper crew because generally in happening bars/taverns/night clubs Whites beyond wigger types don't hang out in majority Black places(at least in my experiences). This must be much worse in Philadelphia which isn't very White friendly beyond a few ethnic neighbourhoods and the tony area around the old revolutionary era buildings.
Ps I have noticed that strip clubs have mixed crowds if they are in airport/ warehouse areas but if they are in the ghetto only working class Whites seem to be in the establishments.