If a patrol car is pulled over to the side of the road, you have to change to the next lane (away from the stopped vehicle) or slow down by 20 mph.......
Every state except Hawaii and Maryland and the D.C. has this law.
In California, the "Move-over" law became operative on January 1, 2010. http://www.moveoveramerica.com/
My son got a ticket on Pleasant Hill coming back from Wal-Mart. police car (turned out it was 2 police cars) was on the side of the road giving a ticket to someone else. My son slowed down to pass but did not move into the other lane.
The second police car immediately pulled him over and gave him a ticket. My son and I had never heard of the law. It is a fairly new law that states if any emergency vehicle is on the side of the road, if you are able, you are to move into the far lane.
The cost of the ticket was $754, with 3 points on your license and a mandatory court appearance. I do not know how much the fine is in CA but it is too stiff to not let you know Please let everyone you know that drives about this new law.
It is true (see details at the following web address).