May be rated for out of province speeding tickets, but I don't think such tickets show up on Ontario drivers abstracts. His best bet is to pay it then never mention it. It's quite possible that if he does not have any tickets or accidents in the last 2-3 years that his insurance company isn't running his reports every year anyway.
edit - unless of course he has the time to fight the ticket while he's down there. that's always your best bet.
Wide open road, wide open throttle.