I have a (not frum) cousin who used to be a high ranking cop in NYC. He once gave me one of his rank pins and said I should show it if I was ever pulled over. (He apparently got extras to give out to friends and family.)
After he handed it to me, he paused, and said,”But you’re wearing a yarmulke, so they’ll probably give you a ticket anyway.”
I went on to ask him if he had ever experienced antisemitism in his years on the force.
He replied, “Not to my face.”
(He’s well over six feet tall, and had served in the Marines prior to the NYPD…)