I would go to a reputable body shop and get a quote, then take the quote to sams and have them pay for the damage.

This same thing happened with an indi tire shop on my mothers nissan maxima. The idiots put the car on the lift without properly locating the pads on one of the jack points, it crushed the rocker panel pretty badly. We got a quote from a couple body shops and had it fixed. The tire shop picked up the tab.