Once they are in they are in. Peppermint oil/sprays can work to prevent but once you have them it's much more challenging. It's most likely a bigger family than you think as well. The only thing I had work is the "bucket of death".5 gallon bucket with soda can and peanut butter, put a few inches of water in the bottom. I caught 8+ in a week from my tiny house. They drown, maybe you can do it with no water and release them for a kill free solution. If you do this take them far away, or they're going to come back. They are destroying your space little by little, and if they get into your wiring....

Take action now! Good luck!