Passbook not showing up in lock screen at Starbucks.
I added my Starbucks card (via the Starbucks app) into Passbook. I also added several "favorite locations" to the card. I have all necessary settings, including those in Notifications and Location Services, turned on as described in http://support.apple.com/kb/HT5483. However, when I walked into a Starbucks in my favorite list this morning, the card failed to appear in the lock screen. I had to open the Passbook app itself in order to use it. Anything else I can do to get this working? Passbook is a very cool idea but doesn't seem to work--might as well just use the Starbucks app.
iPhone 4S running iOS6 (obviously)