I can't comment on he bomb, never tried it in an RV. They make me nervous.
Kill as many as you can. Figure out how they are getting in. They like to nest in wood that is soft enough to dig through. Once the soft wood and nest is gone they may move on. They don't eat wood, so they need other food. Don't let them find food in your RV. I've only seen them in one RV and the RV was only a satellite party location. The real nest was nearby in a tree.
It is rumored that mixing sweets like sugar with poison can trick the ants into taking poison back to the nest. Be aware that the poison can be ingested by other animals (wood pecker, cat, ...)
Use ant traps if that is safe in your situation.