Finally, some good news!
There was an electrical component that malfunctioned resulting in the start button and steering wheel lock being unresponsive. The part was shipped overnight to the dealer and has been replaced.
According to the SOA rep, the car is running and the Subaru engineer has test driven the car to make sure it's running properly. I should be able to pick up my car tomorrow once it's reassembled.
The SOA rep is due to follow up next week after I get to spend some time driving the car to ensure it's still running properly and we can discuss some kind of compensation at that point.