New vehicles sold in Canada. After a period of time (could be six months of personal use), there are legal steps to export from Canada to US. The window sticker is complying with Canadian law. You should see a Canadian leaf and fuel consumption in liters/100km on window sticker to confirm. There are certain US franchise dealers that "find" these vehicles regularly. The annoyance is from Canadian consumers who have fewer used vehicles to choose. US Dealers will usually honor warranty since it is a NA vehicle, but you can always check with VIN in advance to make sure there are no surprises.