I noticed your original post mentioned the parking light switch that was at the top center of the steering column, between the steering wheel and dash. Subaru removed that years ago. I think it confused too many people We used to call that the battery killer switch.
My car has been at the shop for 2 days. Yesterday they called and said there might be a short. They just called now, and said they "ordered the part and my car should be ready by Saturday". I'm headed in to get my loaner.