Canada

However I'm not sure Harper would have worked at his garage, as everything I have read about him up to this point makes me think he fancies himself as too good blue-collar work (daddy got him a job in a mail room at Imperial oil, that says everything). Unless he was doing their accounting or something. I haven't read his bio though so I may be talking out my butt about that.

But I did a bit of searching. So apparently Stockwell Day made a point of being one of Keegstra's first customers in his new garage. http://thetyee.ca/Views/2004/12/01/TheManwhoWalkswithDinosaurs/

Found another link that says Keegstra's new garage was in Bentley, not Eckville so the post on your FB page may be mistaken, as those places are a bit of a drive apart. (link seems a bit CTish): http://www.hiddenmysteries.org/themagazine/vol12/articles/bentley/bentley1.shtml (so many awful links come up when you google Keegstra. Anti-semites still abound)

Still, Stockwell Day's association with Keegstra is apparently well known. So I think it's plausible that Harper knew him, but I'm not sure he would have worked for him. MHO of course.