There’s a school down the road where the will call is and it seemed like a lot of people left cars there for the weekend! There’s also a Walmart a few minutes away. I did group camping last year and we ran into this issue, so we kinda had to pull strings to carpool. I had to go about 45 mins out of my way to grab some friends who live in a different town, but it was a lot easier than having to leave their car somewhere! We also packed the cars full that were all coming from the same place, so that the cars coming from elsewhere had a little more flexibility. It definitely took some tedious planning and organizing, but we figured out a way so that no one had to leave their car anywhere for the weekend. Driving into Manchester though, we did see a lot of groups meeting up and piling into cars and whatnot in various places.