Kemer. We recently bought a new ( to us) Fleetwood revolution LE. It came complete with a little field mouse. I had found evidence of it when cleaning right after purchase. But , being optimistic, I decided it had probably moved on after the unit was put up for sale. So, I cleaned and then we took the unit on a shake down trial campout. After returning I was removing perishable food items and discovered certain evidence that made me know the little hitch hiker was still in residence.
Being the great sleuth that I am, I left the peanutbutter crackers where they were, but the open end laying on a glue trap. Then in the next shelf down, I put a plain old mouse trap, baited with Peanut butter and really jammed that peanut butter really hard into the spring action lever. Well, the second night after I set the trap, I got him. He was a tiny little guy. Then I reset the trap because when you have one sweet little hitch hiker, you usually have several more. I checked that trap regularly for a couple of weeks, no more takers and no evidence of any about. So, my recommendatios for you is , no poison, You don't know where they will hide in your rig to die. then they SMELL. Get an old fashioned trap, use peanut butter, they love it, Really jam it down into that spring board. You will get your man. uuuhh, mouse. :)