Yes, his Son confirmed it.
http://www.cbsnews.com/8301-504083_162-20105347-504083.html
I actually find this kind of funny. I guess as a Cowboys fan I am being bias. He knew what he was getting into by seating in a section where he was going to be the only Cowboys fan.
I salute the flag and sing the national anthem at games, but giving hell to someone who doesn't just because you're a Marine is just stupid. So I don't feel bad for the taze he got. lol