I know that apparently, some American travelers put Canadian flags on their luggage or carry on then claiming they’re from Canada (the dead giveaway on debunking this is their passport, since how can you be “Canadian” when you have US citizenship unless you’re a dual citizen in possession of both nationalities) since some of them have hatred towards the US or feel ashamed of the country due to its internal affairs.
Yoooers can for sure. It’s such an uncommon accent (there aren’t that many people in the UP and northeast Wisconsin to begin with, and most people who grow up there don’t leave or travel all that much) but so close to stereotypically Canadian that it threw me the first dozen or so times I heard it.