As mentioned above, check to see if the pads are trully factory stock or if they were replaced with a more aggresive (metallic) compound. If they are stock they could have been glazed over and the brakes may need to be turned, scuffed up (cheap fix), or replaced.

I wouldnt worry one bit about the car being involved in a track experience. Its nothing the car wasnt designed to do. With the exception of if the car was driven off track and something was truly damaged.