FWIW, that road rash on your rims is a very minor, and I stress minor sunburn compared to a full blown case of Leprosy!
I glad the service manager is agreeing to buy you new rims, and rightfully so, they are "damaged" and it was their apparent fault with his okay to go through...
I only post this for future road rash problems... $507-ish a rim? That is expensive! There's a place here in Atlanta called "Wheel Wizzards", and another place I know of called "Wheel Dynamics" and "Fast Forward Wheels" in southern California... they can buff those scratches out and make brand new for about $50 bucks a rim!
IF you ever have to pay out of your own pocket, before you pay for a new rim, even if the Rim is bent like this:
They can be fixed... there are a lot of wheel shops like this across the country that can fix for cheaper than a new rim.
Getting a little off topic... but
Fast Forward Wheels Custom Wheel Refinishing and Repairs also paints calipers very well: