Don't be too hard on yourself - most of us have done something like that before. Try to look on the positive side, and treat it as a learning experience for the next time you park close to a curb. Besides, it's a right of passage for your new M3 - a friend of mine has an M3 cab, and his philosophy is that once he gets the inevitable first ding, scratch, or whatever, then he can stop being so totaly anal about his car, and enjoy it more!