The NFL should just man up and condemn police officers country wide and ask that any police officers NOT attend any games or purchase any merchandise as they are obviously contrary to the spirit and inclusiveness that is the NFL.
Every stadium should do a "police" check and ensure anybody in law enforcement is escorted from the stadium and their season tickets confiscated. (Not revoked, mind you, confiscated. Their money can go toward helping underprivileged youth learn how to handle firearms "sideways" style.)