Well, Costco claims department payed for the wheel repair as well as the rental car. They were pretty easy to deal with, although their official stance is they are denying they caused the damage, but can't prove they didn't do it . Wish they would just take responsiblity and at the very least train their guys better, but whatever, I'm never going back there again.
On the plus side, if you have curb rash and want it repaired for free, take it to costco and they'll mess up your wheels and pay for repairs