It's true that this year the website says you're limited to 4 people per regular camping pass, but I highly doubt they'll enforce this. Given the relaxed state most of the other rules are at the campground I can't imagine them calling you out for having a 5th person sitting bitch in a sedan and making you buy an additional pass. 8 in a van might be a bit more borderline, but the worst they'll do is charge you an extra camping pass. I doubt they'd even do that. I have a friend who is showing up in an RV with 12 others all on one camping pass. Who knows how that will work out. Sorry I can't be more help!