... has gone to a District Convention based on one of the invitations in the annual campaign? My convention is held about 3 hours from where I live so I doubt it has gotten anybody to go to the convention. I'm not even sure what the purpose of it is.
On another note, people who come might be turned away at the door anyway. Yes, that has happened. Someone I knew decided to come to the convention (who wasn't a witness) dressed in a regular shirt and jeans was turned away at the door by an attendant because they thought he was going to try and disrupt things. He couldn't name the congregation I was apart of and didn't have an badge so they wouldn't let him in.