If I asked the local guy I go to to do that, he'd tell me get the f**k out of his shop and stop wasting his time. He's got more business than he can do in any given day as it is.
Maybe things are different in YVR, but in the Northeast, I've never been in a shop that seemed the slightest bit inclined to do anything like that. The friendliest response I could imagine would be a look, followed by completely ignoring the question.