I would jack up the car (after loosening the lug nuts) take off the wheels and use some 200 grit sandpaper to lightly sand off the Race pad/ceramic brake material from the disc. Just fold a quality sheet of 200 sandpaper over the rotor and spin it in a counter-clockwise rotation with light/medium pressure. You could then hit it with a good spray of "Brakleen" disc cleaner and give it a moment to dry.
Then repeat the "bed-in" process on your ceramic pads (I don't think you'll need to replace them, but you could sand a little material off them as well). Before you go to the track, repeat the process of lightly sanding and then bed-in the track pads. Easy peazy lemon squeezy. Modern brake rotors are as light as possible- there is not enuff material for repeated turnings. Best of luck and have fun!
BTW- If my local garbage truck made that much noise, I'd shoot out his tires!