Could be Police were pissed off because they had trouble catching up to him since he was riding a bike, lane splitting or riding the shoulder. Probably radioed their buddies ahead that some guy on a bike was making a run for it.
Nothing pisses off cops more than a runner.

One point Michael, in an earlier post you said that NO Canadian police or RCMP collect "on the spot" fines. I beg to differ. Perhaps its changed now but 10 years ago (or so) I had to pay a fine in BC and my buddy, who married a woman in Kelwona, BC, got several Pay on The Spot fines riding his ZX-11. On one trip he paid over $800 USD in speeding fines. My fine was small, but also in BC and was RCMP cop. 62 mph in a 55 mph zone. Absurd.

Basically, police there have nothing to do. So chicken shit traffic stops are how they pay the bills. Canada has no crime, no guns and no gangs to speak of, so anyone going a bit faster than the Absurdly LOW speed limits, gets you nailed.
In BC (and everywhere really) Radar is everywhere. And cops everywhere too.
I've ridden cross Canada twice but mostly been in BC.

Maybe it's just foreigners that must pay on the spot? Dunno? or maybe this practice no longer exists? But it certainly DID 10 or 15 years ago. I paid with a credit card, which the cop was set up to take. Any ideas on this?