There are numerous cross-border agreements between the states and provinces but no blanket rule re what happens re a speeding ticket. Insurance companies also can obtain traffic violation records and I believe that these are accessible to them in at least one province, maybe more and it definitely crosses borders re what records are accessible. Your biggest challenge in not paying the ticket is being blacklisted by car rental companies AND if you ever go back to B.C. and get stopped by a cop for whatever violation, they will run your driver's licence through and BINGO! (and I don't know what the fine would be but it would probably be significant). I would hire a lawyer / para-legal who specializes in fighting these types of charges. You do it from your own city and they will contact their counterparts in B.C. who will take over the case. Its not cheap - usually 2 or 3 times the fine but most of the time your ticket will be changed to a non-moving offence / thrown out of court etc depending if the police show up in court (as they are required to do and testify), if the crown will accept a plea-bargain before the court case etc.