I-280 connecting SF and the Valley used to be a free-speed zone, with very little enforcement from the CHP. This started changing in 2007, to the point where it seems like there are more cops on 280 than on 101. It really takes a lot out of driving on my favorite freeway.
Last week, I saw a CHP car cop shooting people with what was likely a laser gun, with a bike cop sitting next to him, waiting for the green light to go catch speeders. Today, there were 3 bike cops out, although no sign of any car cops. Bummer.