A couple of weeks ago we were at Smoky Mountain National Park. The day was exceptionally warm and breezy. We found a lady bug. Then another. Within an hour, we had dozens. Within two, we had hundreds. We chased out as many as we could and made sure all the screens and vents were tight. The one place we didn't check was where the large living room slide rails were. There is a small gap under the carpet, and that is where many were coming in. By nightfall, the invasion stopped. We carried out lady bugs for two more days after that. The cold weather seems to have killed the rest. We are still finding them but they are dead. We live in our rv so the temp in here rarely gets under 55. I would bet though, if you let it get cold enough inside the rv, they would all die a natural death. Then you just vacuum them up.