Anyone from San Francisco area?

I’m in Massachusetts, but my best friend is in California, and just wrote to tell me that the trains in San Francisco last weekend had signs on them that read “BART Thanks All Our Knitting, Needlepointing and Crocheting Riders.” He was wondering if I knew what that was all about. Anybody know?

I’m just guessing but it could be a reminder of some of things you can do while riding BART (Bay Area Rapid Transit) that you can’t do while driving. :shrug:

(I’m originally from the Bay Area.)