Imagine the outcry in the US media were Brazilians, say, able to take advantage of a similar situation with US currency when they’re in NYC. Or, is this just another of those things that couldn’t possibly ever happen........
Well the Americans in Bellingham, WA have already gotten pissed off by the number of Canadians coming down and taking advantage of the high CAD and the lower costs of gas and milk. They got so angry that the Costco was "filled with Canadians" buying their milk that they started a petition for "American only" times.
And you've got the guys in the South that are frantically anti-Mexican immigrants (well, not just the south) -- so yeah, in a country with that many people you've certainly got enough whackos that would be up in arms if visitors were getting that much more power out of their currency. Fox news would be all over that type of story....
http://gma.yahoo.com/blogs/abc-blogs/americans-fed-canadians-taking-over-local-costco-124454335--abc-news-deals.html
http://www.news1130.com/news/local/article/423474--more-complaints-about-canadians-shopping-in-the-us