The guy should turn up with a couple of friendly policemen in tow and the minute he is refused access, the police should arrest and handcuff anyone who stops the guy.
Start with the security oik and when he says he has been told to do it, go arrest the person who issued the instruction. Cart them off to a holding cell and remind them that if they repeat it, then they will be arrested again.
Proceed ad finitum until the cops run out of handcuffs and the organisation gets the hnt.
