So today the MUNI underground PA was announcing happily that today is a Spare The Air Day and all the MUNI< BART, and Cable Cars are free to ride today. SURPRISE! YAY!
.. when really they mean today is an "Ooops I blew up the freeway day" hahahahahaha.
http://sfgate.com/cgi-bin/article.cgi?file=/c/a/2007/04/30/MNGOLPI2HE1.DTL