When it closes at 3:15 does that mean nobody else can come in after that time and tou have an hour or so to process who is still in the DMV?

Carl they block the button on the dealers ticket machine at 1:00 pm if yo have a dealer ticket you will be waited on but only one transaction. Other then for dealer runners you drop off and go.

That's correct, if you are a dealer the windows close at 1:30 Whether you have a number or not and after 3:15 no one gets in, not even to use the restroom. My recommendation is to get there when they open