Roger that. Even if the manager knew for sure he wasn't a veteran he should have just let it go. Not worth the potential hassles. But, it does sound like this patron was looking to provoke the response he got for the publicity. He's part of the BLM crowd. It was probably the 4th or 5th free meal he had gotten that day, just working for an outcome like this.
Yep, too bad the manager took the bait. If the guy didn't get a rise on the veteran thing, he was probably prepared to gin up a controversy over the "Service dog" named Barack.