ticket with rental car in canada-canadian credit card which was cancelled
I am living in California. I got a ticket while in a trip in Canada, I used my Canadian credit card and US driver license, before coming back to US I canceled the Canadian credit card, now after 3 month ATS sent me a letter that they paid on behalf of me the ticket amount and request that they be reimbursed immediately.
since the credit card already is canceled and i am living in California, would be any consequences if I do not pay them? the ATS is an American registered company but since the violation occurred in Canada I doubt if there would be any judgment in US? right?