It's useful to note that there is a billboard off of 101 NB, as I recall just south of the 280 interchange, that literally tells you to call 911 if you see anyt

It's useful to note that there is a billboard off of 101 NB, as I recall just south of the 280 interchange, that literally tells you to call 911 if you see anything suspicious. In San Francisco, calling 911 on this is just following instructions.