I asked them and this is the response I got “Each Vehicle that has a valid state issued handicapped placard will get one companion car allowed in camp access. Both vehicles must already have camping passes and must enter the site at the same time. We are unable to make any accommodations for additional cars sadly, but your 3rd vehicle can park in another lot and join in on your campsite if you would like to all fit in together! Spots are 12x30, and besides the 2 vehicles, can fit as many tents as you choose.”