Update, as promised:
Mine was replaced about 10 days ago under warranty. I waited to post anything to observe it for an extended period. I haven't had to re-adjust it since the replacement; it seems to be fixed. With the old mirror, I'd have had to adjust it at least three times by now.
2012 Focus Ti Hatch | Ingot Silver | 401A, Nav, Winter Pkg, Moon Roof, Parking Tech. Pkg
Build Date: 12/2/2011 | New APIM: 4/4/2012
MFT: Factory v2.11, 3/14/12 Web -> v3.0.2, 9/24/12 Web -> v3.2.2, 1/24/13 Web -> v3.5.1, 8/13/13 Web -> v3.6