is it dangerous? probably not. a distraction to other motorists? absolutely...but as you said, it's ok "if the driver knows what he is doing." How is the police officer supposed to know the drivers skill level? That thinking is ludicrous. Should the police officer have him do a series of wheelies in front of him (set out a cone course right then and there),to gauge his skill level (of course the judging will differ from officer to officer) and then fine or release him? The laws are made for the masses. Some are good laws, some silly. An officer is sworn to uphold and enforce them all, not pick and choose which ones he/she "likes". Its a difficult and ethically challenging dilemma at times. As far as your bubble wrap idea, remember, there is a warning that "this bag is not a toy." Its your govt, trying to protect you and others from tire smoking, wheelie riding, bubble wrapped hooligans.
I don't think youre a douche, and youre probably a very good rider. It only matters what the judge thinks. But for your immediate need of the ticket, vs, fighting to get laws amended, your best bet is to be honest to the judge, discuss your skill level perhaps, and ask for a negation or drastic reduction in the fine. Offer to pay court costs only (instead of the ticket + court costs). Trust me, the majority of their day, people are lying to them, its refreshing to hear the truth.You'll have a tenfold increase in chances he/she will try and help you.