My tyre guy is a car tyre dealer and he went to the trouble of getting nylon rim protectors to avoid just that sort of problem but if he did not respect my bike He would be paying to have the rim sorted, I don't care how good he is at tunning he must know how much you cherish your bike if he is a true biker himself, So I say let him fix it From the pictures I would say that unless the scratches are very deep careful rubbing with wet n dry will fix a lot of it, followed by a few hours of solid polishing will probably fix it butit may not be exactly the same as new finish but you have to let him try and fix it before you start looking at taking it legal, JMHO