The Go
“P.S. i was wearing a baseball cap so there’s no issue of Chillul Hashem.”
Even if there’s no issue of chillul Hashem we still have to act like mentchen. Expressing anger and lowering yourself to say something hurtful even to a non Jew is not the way we behave. We are Rachmanim Bayshanim and Gomlei Chassadim. You missed an opportunity to grow by controlling your emotions.