When I signed up for the ERS policy that it clearly states they are responsible for towing you to the nearest repair facility.
You stated that you were in an accident. Wouldn't your comprehensive/collision coverage limit your financial impact for repair to your deductible amount?
It seems you could have saved quite a bit of money and time by having it towed to the nearest repair facility that would have been covered by the GS policy, and having the repairs done and paid for by your vehicle insurance policy.