Okay, that just makes me think, "Wow." ^^ I had no idea. I'd found this image http://www.interstate-guide.com/images069/i-069_net_09.jpg through an image search. And though I'd skimmed the website (http://www.interstate-guide.com/i-069.html), I was so intent on the images that I never really keyed in on the fact that it was for Michigan, much less right near Detroit. So I guess I'll count it as one of those neat sort of coincidences--one that pleases me more than it probably should. :)