After being rear ended by someone driving an enterprise rental how can my car get repaired?

Was in an accident Wednesday morning and the person behind me hit my car driving over 70 mph on the highway in Florida. Managed to get my car home and my insurance company (progressive) took my claim then ended it saying it’s on Enterprise as they are at fault. After 2 hours calling enterprise I have discovered all I can do is begin a claim on their end and will need to wait 10 business days for their investigation before getting options for repairs on my car.

What can I do for March while I wait for Enterprise? Or does anyone know how to get Enterprise to act sooner?
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Thank you for the answers. 9 days later and my car still sits in my driveway damaged and no timeline from enterprise on when I can get it repaired.
After being rear ended by someone driving an enterprise rental how can my car get repaired?
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