You're in the same bucket as me, 12/12 build date and I'm 99% sure that we have the outdated tune that was blamed for the injector seals melting. I only found confirmation on the updated tune on 03/13 built cars and definitely outdated on 11/12 built cars, in between is a bit of a black hole.
http://www.ft86club.com/forums/showthread.php?t=41130
Don't freak out and think the sky is falling, there are maybe at most a couple hundred people who were affected out of the 30,000+ units sold with the original tune and many have abused their cars with no issues (myself included).
To the point of the thread, are there any standout service departments in the Bay Area? I'm finally looking for the reflash too (otherwise leaning towards OFT) and I need a coil pack replaced. Also have condensated taillights but I can let that one slide.
Edit: In theory any dealership should do it, one that I called up was all gung-ho "Sure bring it in! It'll be a 2-3 hour appointment" sounded like the kind of place that I'd go to pick my car up from and have a $600 bill attached to what should have been free warranty work...