Thanks, everyone. I'm still reading through the links from 2oldman.
My biggest concern re the mice is the transmission of Hanta virus. I'll be spending the next couple of days disinfecting our motorhome, we've had them inside the coach. :(. Mask, latex, gloves, lots of Lysol...
When we're at our U.S. residence, our motorhome will spend some time parked at a storage facility not plugged in, so the electronic devices won't be an option. They appear to be working here at home, down south it'll have to be something else.