This article is from the California Driving (and Surviving) FAQ, by "George J Wu" firstname.lastname@example.org with numerous contributions by others.
from email@example.com (Chris Calley) on 25 mar 93:
Should you decide to fight the ticket, you might be able to argue that since
the cop was not observant in writing down the correct state on your
citation, that he/she might also have not been observant regarding your
speed. I do not believe that the simple fact that an error exists on the
citation automatically gets the ticket dismissed.
from makey@VisiCom.com (Jeff Makey) on 26 mar 93:
About 5 years ago I got a speeding ticket in Maryland while driving a rented
car. Everything on the citation was correct but my driver's license number
(the cop wrote down some other number that was on my license). I paid the
fine rather than travel back to Maryland to fight it, and my insurance
company *did* eventually find out about it. I assume that the ticket showed
up on my California driving record, but never checked to be sure. So don't
expect a wrong license number to keep your record clean.