Did a search and no recent threads..... We bought the TT late last fall. Didn't really spend much time putting her away properly. I'm guessing the powercord is most likely where they got in, but ...
1) dryer sheets do not work... My buddy had them in his RV and they used it as TP. 2)ultrasonic pest repellents do work.. but you need to be plugged in or have a good solar system. 3) dont be "humane" kill them.. they will ruin your RV.. they love to chew on electrical wiring..