You see this guy on the CCTV cameras prowling the parking lot, looking for someone or something. You're supposed to tell guys like this to move on, but 10.50 an hour is not even close to enough to deal with that.
His patience is wearing thin, and the BS story you are telling is only making him angrier. He's trying to decide whether to take you out back to have a little chat or just do it right here.
This guy keeps hanging around the door. He won't look him in the eye but brushes up against him going through the door. He's giving rough sub vibes. The doorman in the mood for some rough play, if the guy sticks around until after closing, he might give him more than what he's asking for.
Nature is Nature; everything gets quieter when the alpha predator is in the area. Even in the city, everything from the rats to the muggers gets quiet when this cop is on patrol.