We plan to be passing through with our camper back to the "cold north" that weekend. Can we park at the grounds? I don't expect any hookups.
There is some parking at the Super 8; the Wal*Mart parking lot is used a lot by campers, trucks, etc. (Wal*Mart is just north of Interstate 80) If you want a campground, there is one at Recharge Lake (just west of York off of Highway 81, do a google map search & you can find it easily enough. )
A P.S. here -- checked with the agency that maintains the campground at Recharge Lake & it is not likely to be open in early April. They shut off & drain the water from the pipes & restroom over winter & don't usually open it back up until "danger of freezing" is past -- i.e. mid to late April.
The meet is held at the City Auditorium downtown, with plenty of parking to the north & west, but probably not where you'd want to settle down overnight.