The cyclist was in the bike lane at the time. More info:
http://losangeles.cbslocal.com/2013/12/08/bicyclist-struck-a...
http://www.bikeforums.net/showthread.php/925411-Bicyclist-hi...
http://losangeles.cbslocal.com/2013/12/08/bicyclist-struck-a...
http://www.bikeforums.net/showthread.php/925411-Bicyclist-hi...
http://www.nytimes.com/2013/11/10/opinion/sunday/is-it-ok-to...
It appears that the answer is "yes, almost always".
I dare you to scroll through http://www.streetsblog.org/ for a few pages. Unless you are DUI or run from the scene, being in a car is a license to kill people, no matter if you have been speeding, your license was suspended or your brakes defect.
Speculation: The dash-cam might have some type of buffer that allows for it to save the moments leading up to an officer turning on the sirens though so maybe it is saved.