Camping at Carlisle?

The guys in the swap space next to mine camp every year. They bring a camper, so there's that.
The down side is they lock the gates at 9:00pm so if you're in, you're in and if you're out, you're screwed.
If you want to camp and are in the show area I think the camping is just out of the gate across from the school. I've never camped there, but I understand the hotel situation as well.
I usually stay in Shippensburg and never had an issue.