Which Subaru mechanic for rodent infiltration?

We thought our battery was dead, but it didn’t start with the help of the roadside assistance jump pack and we noticed a small nest of consumed maple seeds and rodent droppings above the engine. Assuming this is chewed wiring, where should we take it that will be able to diagnose and fix that quickly? Assuming that’s possible 🤦. We’re in Kerns, in terms of towing considerations.