Yes, 7-man crew. The first flag was a throat slash motion on a TD. He said he was "celebrating with the fans" and not taunting the other team.
According to some fans from both teams, Gray was yelling at the officials after the game as they were leaving the field and had to be separated by police officers.
What amuses me is that in some games (Ozen-LaMarque) they blame the officials for "losing control" of the game. In other games, the officials are too strict. IMO, this game could have easily gotten out of control if the crew had not been on top of it.