campground near Erie, PA no holiday weekend minimum

Does anyone know of a campground either near Cleveland OH, or Erie PA that does not have a 2 or 3 night minimum on holiday weekends? We'll be arriving July 3rd in the afternoon, just passing through. We want to stay the night and leave the next day around noon. I've checked at least 20 or so that all seem to have holiday weekend minimums. Not looking for anything too fancy, just somewhere to relax for the evening, with water/electric hookup.