Originally Posted by Trips

I would just call her/his insurance and file a claim.

And yes the mirror would need to be replaced.

Originally Posted by JARblue

Call the insurance number they left immediately. You want to know right away whether it's genuine. After you figure out who's paying for the repairs, then you can talk to a shop. All you need to tell them is to fix it. A good shop should have no trouble getting it back to normal.