The blue card Lang is asked for was essentially proof of handgun ownership that allowed a holder to avoid the 3 day waiting period. As of 2015 they are no longer issued or the law.
A clipped out article appears on the mirror of Wayne's stalker at his club referring to Wayne demanding NBC News retract accusations made against him and mafia ties in the fall of 1980 - Eventually a lawsuit resulted where Mr. Newton prevailed against NBC.