My driver-side mirror was smashed by a Cadillac Escalade (hit and run) this weekend and I'm trying to see about fixing it. I just got off the phone with the dealership and they told me you have to replace the entire mirror assembly, instead of just the glass.

Is there any way to replace just the glass? The motor and everything else works fine. It seems silly to buy a $150 assembly to replace $5 of glass. Any input is appreciated. Thanks.