Chris Christie to heckler: Keep walkin', pal

Christie got PISSED — and while clutching his cone, shouted back at the guy, “You’re a real big shot … you’re a real big shot shootin’ your mouth off.”

The man shouted back, “Nah, just take care of the teachers!”

The comment only enflamed Christie … who aggresively marched towards the guy and warned, “Keep walkin’ away … really good … keep walkin’.”