Dryer sheets and strong odors have been debunked years ago.
On the other hand, it could be dryer sheets have kept elephants out of my home basement. haven't seen any signs of one yet.
Seriously; The best practices is to remove ALL food sources from the RV. Wash countertops/food prep areas, mop floors, wash out refrigerator. Then seal all points of access. A mouse can squeeze through a hole the size if its head.
Pictures have been posted here of a mouse nesting in dryer sheets, with cotton balls and an Irish Spring soap bar in the RV, and a sonic generator plugged in.
__________________
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA.
" My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy