your case, or your "convictions", is not speeding, stop-sign, careless driving or stuffs that can harm the public.
it's more like if you don't have the insurance paper with you or have the expired one but you actually have insurance.
just show up at the court, explain to the judge politely, show him you've make changes on the tint and the cover.
did you buy your car used? if so, did the person/dealer who sold you the car told you the tint is legal or you were told it is legal??
About the front plate.... see if you can pull off a good reason...
if you already have ticket(s) about the front plate before, not sure if they will use those records but those screws could get loosen, so you might have to buy new screws and you thought you don't feel safe to have the plate mounted with loosen screw thus it was off for that particular trip to Cdn tire....
something like that..... maybe it works.... good luck....
