We decided to check out a different camp site over the weekend and got swarmed with wasps when the sun was at its warmest.
Luckily the next day and during packup it was over cast and cool so they couldn't fly, but we spent like an hour shaking wasps out from all the poles of the canopy. We easily stomped to death over a hundred wasps that fell out, I've never seen anything like it
I think they were just everywhere, the bathrooms nearby were the same and the only other campers a few spots down were dealing with the same issue. I just walked away for the few hours they were active and we only had to confront them when we wanted to pack up the canopy, they were all in the frame so we had to shake it and tap it with a hammer so they would fall out