insurace rates will not change until it is time to renew

I'd say file the ticket with the court, get a court date, send a registered letter to the CA office asking for disclosure, and take it to trial.
If the cop shows up, oh well, plead guilty and be done with it. At least you made them work for your money. If the cop doesn't show up, 99% likely the CA will drop the charge. We pay enough tax as it is, don't pay more than you have to.

yea airport in malton is a bitch.. (i'm assuming thats where it was) goes from 80 to 70 (70 for less than a km, maybe even half) then down to 50... and airport itself southbound goes from 80 to 50 and northbound, 60 to 50.... the road is completely open and it's all commercial around it... 3 lanes both ways.. no reason to be 50 other than to hand out tickets

Bring it to court, the cop may not show up.....what do you have to lose...and no they can't re-introduce the original fine