Different province ... atlantic canada ...
Stopped / ticketed for no seatbelt ... 2-3 blocks from my house, still in residential area, vehicle speed 20-30kph.
I decided to not pay ticket and take my chances in court .. in that province you can make that selection on the ticket itself and mail it in.
Was having some problem with leg for approx 2 weeks earlier, and still had that problem at time of ticket. I usually had to readjust my position in seat for comfort reasons, often enough, and did unclip seatbelt when doing that. Not sure if that's what happened on the day of ticket, but since I never drive without a seatbelt on typically ... that would be a plausible thing.
There was no way to challenge officer on whether he did indeed see seatbelt not in use ... I drifted by him when he was outside his car, another two feet closer he could reached in clipped the seatbelt in Doubt officers would issue that ticket if there was any significant doubt.
On initial court date, spoke with prosecutor first as is typical for this stuff I believe. Told him the same story above ... He decided to let it slide. I did also mention the likely insurance increase because of the ticket, and thought that was an excessive consequence for the incident. I was ready to go to court, that day or other, on my own. I think the prosecutor understood that.
Same explanation was given to the officer ... but he mentioned a zero tolerance policy ... so off to court we went. Still costs me money to go to court.
I think you should contest the ticket ...
If you go the route of challenging the officers opinion, you will have to win on that basis ... or you could try your luck on the prosecutor letting it slide. If you go the route of "prosecutor letting it slide", keep in mind they hear BS all day. Most often they already decided what they are willing to do, before they hear your story, it would take a lot to sway them differently. If they are inclined to let it slide, being overly disrespectful, argumentative, or trying to sell obvious BS, just makes them less inclined.