[Last time a USMC retired was a docent and demanded respect. He looked like he just had spent the morning as a drill instructor to some boots. Everything about him was perfect.]
I wonder if they could have some sort of permanent posting like the tomb of the unknown soldier where a serviceman tells people to shut up and show respect.
I think the major difference is The Tomb of the Unknown is controlled by the Army while the Arizona Memorial is controlled by the National Park Service.