Sure, but the act can't be divorced from its context. The passive aggression of the note (either dictated/influenced by the police or solely from the worker) and the lack of addressing the validity of not wanting to bear near officers in America makes the act suspect. And many people can't give police the benefit of the doubt here anymore, for good reason.
You make fair points. We have a lot of work to do (an understatement, I know) and I expect that trust and respect will not come easy, if it is even possible. This would have been a much simpler situation without the damned note. I'd venture to say that this incident will serve to divide rather than unite, given the reactions in this thread, which is a shame because it's indicative of the apparent futility of any goals of harmony. Of course, good people won't give up or stop being good. I just hope that we can have a better execution and outcome the next time a similar situation arises.