First, are "conservatives" pissed off because they think they own the cops' political affiliations? Are cops always and only supposed to be lined up perfectly with the Proto-Fascist wingnuts in the GOP? And if that's the case, then doesn't that put up a perfect reflection of the Political Correctness that "conservatives" are always bitchin' about?
Second, this guy is - in absolutely no way at all - making any kind of blanket statement to say all cops in Pittsburgh are racists. Sweeping generalizations are very much the hallmark of The Right; not so much for anybody anywhere else on the political spectrum.
So - really - if you're totally convinced this guy is calling you a racist asshole when he is so obviously not calling you a racist asshole, then you just might be on the verge of recognizing yourself as a racist asshole.