Count yourself lucky. The little pest could have easily chewed through wiring and then you're in real trouble. Are you worried it's still there behind the dash?
You can put mesh over the cabin air intake. It requires taking the wipers, their motors/linkage and cowl off to get at it.
Put cheese next to the vehicle, NOT in the vehicle! Actually, get some sort of trap and peanut butter. They love peanut butter. Posted via the PriusChat mobile app.