From Ridepal Offers Free Google Bus-Style Rides to Relieve BART Strike:

Jubilant riders board Ridepal's extra buses during the BART strike, July 2, 2013.
Jubilant riders board Ridepal’s extra buses during the BART strike, July 2, 2013.

Jubilant riders board Ridepal’s extra buses during the BART strike, July 2, 2013. Photo courtesy of Ridepal.