Well....
Almost everyone Ive read that has the problem, like speeding. Hitting your brakes when you are going 80-90mph to slow down to 60 will warp you pretty good. Im not saying you do, and Im not saying that the stock rotors are any good, but a rotor warping at 2000miles is a driver issue much more than a quality issue. My car is at 5000, no problems, and there are many other owners with no issues. While you could have just gotten a crappy pair or whatever, a general piece of advice is to lay off the accel. earlier on the highway if you know you are going to get off/stop.
After one resurface already, you should have the rotors replaced. If they dont cover under warranty I would suggest that you get different rotors with warranties on them.