Well, with Acura, if you buy across the border, they invalidate the warranty in BOTH countries, so you are totally SOL. I wouldnt want to risk it with such a new and expensive vehicle!
Incidentally, my father in law's good friend went and bought 2 (1 for his son) top of the line Toyota Tacoma trucks 2 months ago, and saved 8k on each. Toyota did allow transfer of warranty between countries after a lawsuit some years ago. However, in the last few weeks this changed, Toyota USA dealers are now forbidden to sell to Canadians. He was one of the last to get by. I have seen the trucks, quite a steal at 8k off!