Dude, that is really effin' gross! Burn your house down and start over.
I live in the only habitable rat-free place on the planet but still have to deal with mice that were driven out of their natural habitat to make room for roads. They've invaded the adjacent neighborhoods and are getting into yards, garages, and homes. My neighbors don't know they're there and don't want to know even if they are. Fortunately my domicile is well sealed but I have implemented a perimeter protocol to doom them before they settle in my yard.
I would rather tangle with bears, cougars and wolves rather than dirty rodents and insects. Kudos to the Axiom folk who were brave enough to deal with your problem.
