No doubt. And that was after he chased Martin for two blocks to catch up to him.
Didn't you know? Zimmerman had an objective, he had to detain, and interrogate Martin, and in order to do this, he absolutely MUST make Martin aware of his superior abilities.
Hell, it's not like he could catch up to the kid and say "Hey man, I don't recognize you, just wondering what you're doing in the neighborhood? We've had a string of break ins so were all on high alert".
Nah, he MUST have had to intimidate the kid and interrogate him, after all, this if fucking Iraq and people won't answer your questions unless they fear for their life.