With all due respect to the expert, does local knowledge matter. We have lots of termits locally. Throw down a 2x4 in late spring and in 2 weeks you will have thousands of them. I have witnessed the exit of flyers on several occations. They come out of the ground and they just keep coming. I used to panic. Don't the flyers have wings? ours do. The little white workers that do all the damage must have a path to ground. A tunnel of soil, wood, some way to get back underground. If I were the OP I would look for the path to ground. Carpenter ants are another story. Big black ants that love wet wood. They destroy framing members for lunch. Guesing you don't want either in a camper.