Cimorene

No, not as far as I can tell. From my reading she says she learned in October about the opportunity to go to Toronto, but the bit about being lost in Buffalo is in February. Since it doesn't take that long to go across country unless they were, like, biking, I think there's not necessarily a mismatch.

Which doesn't mean the story's true of course, because they've told plenty of plausible stories over the years along with the ones that were completely implausible.