[ericedelman]

Aside from the idea that rotors are a wear item, I'd ask the dealer to replace them with new rotors. If they are warped and they turn them, they are likely to warp again as soon as you start using the brakes. The OEM rotors don't have a lot of material to begin with, so if you take away some of it, it's going to heat up even faster and warp (again).

Other things to look at if this is happening on the same car is the hub surface may not be square, the back of the wheel may not be square, or the person who swapped the rotor put the wheels back on with a powerful impact gun and put too much torque on a lug. These are all things that can cause rotors to warp other than heat.