I’ve been out of town for a few days and returned home to a stuffed inbox with messages from perplexed and shocked locals lamenting the quick and unceremonious disappearance of Santa Monica’s branch of Asian-ish eatery and longtime corner of 4th and Wilshire anchor P.F. Chang’s.  All signs have been ripped down, and as you can see, the front is boarded over.  Disheartened die-hard fans are seeking answers, so if you have more information, let me know…