The difference between the .CA sign on a truck and "advertising down there" is that the former is a probably Canadian property which happens to be in the States. So unless the company serves mostly in US territory, I'd doubt they are advertising their .CA domain "down there" specifically to their US clientele.
You can't be serious.
Canadian property? That's a no brainer.
It is a moving advertisement. If it was in NC, where did it come from, where had it been, how many tens of thousands or hundreds of thousands of people saw this on the road, what was its destination, and now it was on a return trip home.
It brought a load of something down here to it's final destination and a great possibility that it was bringing something on the return trip. If a merchant had something to be transported back to Canada, it would be nice to know that there is a freight line operating. How do we get in touch with them?
Again, hundreds of thousands of people seeing this vehicle. Has a .ca website on it and I know of at least one person who saw it.
Get out a map, look where North Carolina is in relation to Canada. Tell me that is not a long haul.
A .com, .ca, .net, on a vehicle is advertising and extending it's reach. Got plumbers up there in CA? Electricians? Got the name of the company on the side of vehicles? Phone number? Website? Or are all the vehicles non descript?
It should not be to difficult to see .ca ads on trucks in the US, especially the northern states.
My point exactly. I am originally from Maine. I am sure this is a common site in Maine, New York, Wisconsin, etc.