Hey I have disputed a ticket successfully by submitting a dispute online and then following up by calling the Cambridge Traffic department although it was technically my mistake.

I had paid via Passport Parking until 2:30pm but I got issued a ticket at 1:50pm. I realized later on that my I had misspelled my plate number in the Passport app (for eg ABC123 —> ACB123). They understood that I had typed it in wrong and acknowledged that I had paid till later as well so they agreed to dispute it.

So I feel like since they agreed to dismiss my ticket when it was clearly my fault, I’m confident that in your case they should agree to dismiss it too since you did pay till 1:40 and the ticket was issued at 1:40 (not later).

Submit the dispute online & then call in a few days to follow up. Expect the resolution to take a few weeks to a couple of months. Good luck!