At a South Carolina state park, I had sprayed an ant repellent (like Ortho) around everything that touched the ground. We left to go sit on the beach for a couple hours. When we got back, ants were crawling up a broom I had leaned on the camper. The trail went a few feet up and across to the stove vent. They were all over inside the hood and had gotten in the hollow wire run in the wall cabinet. A couple of Terro baits finally killed them off.
Next time I’m at the dollar store, I’ll load up on Comet. And not lean anything on the camper.