PMM said:
Hi
Not a good idea, since Detroit no longer has walk in service.
http://www.canadainternational.gc.ca/detroit/visas/index.aspx?lang=eng&view=d
From what I just read they still do offer it, they don't offer it for
non-immigrant services.
This is the quote from the alert
If you applied for permanent residence in Canada and you have received a notification from our office, the Case Processing Pilot Office in Ottawa or the Canadian Consulate General in Buffalo requesting you to submit your passport(s) to our office you may do so in person on Tuesdays and Thursdays between 8:30 – 11:00 am. Your passport(s) may be returned to you the same day. You must bring the notification with you.