These aren’t the traditional lady bugs but the invasive Chinese lady beetles that were imported to kill aphids but then grew in stupid numbers in the US and actually bite us and kill lady bugs. You can tell because the spots are symmetrical and they come in varying colors.
Are you in the midwest and currently in staying or living in the rig?
This happened to us in 2022 in Missouri (we live full-time in ours). They came in through the slide seals because they’re looking for a tight space to winter over. Check your seals and windows but they still may come in via your AC vents, etc.
Once they’re in, the only thing you can really do is vacuum them up when you see them and stop the end of the vacuum with paper towel so they can’t get out. They will come out of the nooks and crannies for awhile. If you’re not living in the rig, they’ll probably die off if they can’t get out but you may find them clustered and dead in the tight corners and spaces. Ugh.
They secrete a pheromone that attracts others in droves.
Vacuum them up, and clean all your surfaces…anywhere they’ve been.
It’s about all you can do.