Let game administration know the fan needs to go and then inbound the ball. Only reason why I'm holding it up is if he/she (fan) is on the court and interfering with play. My focus is on the 10 players between the lines and not the fans in the stands.
So long as game management is involved there is no way I'm even thinking of having the home coach get involved or threaten with a T. Not in a varsity game with game management/AD/security around.
There is no good reason to be joking with the fans. It can be looked at as pretty unprofessional. It looks bad especially if a coach needs to remind a official the game is starting back up again
Sounds like the guilty official feels to be a 'man of the people' that's great just not during the game.