My son & I were the last people out of MK one night - We had a CM take a picture of us on an empty Main St. with no one else around.....
The security folks don't really push you out, they more or less herd you by making their presence known. We approached them & asked for the picture - While they were taking it, the last of the crowds left, hence leaving us the last to walk out.
It was pretty cool to be the only guests on Main St.