I wasn't there, theoretically speaking only, Someone with a CCW/CHL and a weapon on them, if asked to leave, needs to leave immediately. Period.
Refusing to leave can turn into a criminal trespass with a weapon charge.
It will be interesting to see what really happened as best as can be determined without the tapes.
As to OC, there is no element of surprise at all. If I were a crook and really wanted what someone was carrying, I may take it after they are no longer breathing, no matter how much testosterone and SA they claim to have. Hope OC folks are experts at weapons retention.
To each his own, YMMV.
Back to the service road.