We've all been over this before. IF the plane followed the normal route it takes every day at that time then it would have had a gigantic rocket on its tail and would NEVER have made it to Ontario to land.
It'd been destroyed in route.
Turns out the plane made it. Three engines and all.
Draw your own conclusions.
At what altitude (approximate) do you think flight UPS 902 would have stopped making a long contrail ?