Is it really reasonable to think DFG Wardens must help us prove we bought the fishing/hunting license? We are required by law to have them in our immediate possession. If it was that easy/convenient to do then no one would have to carry their license. Ever. I know it sucks, but that's one of the thing we need to make sure we bring with us. If you forgot nearly any other piece of gear you wouldn't be fishing.
Pretty funny, the OC court lists fishing without a license as an example of a non traffic infraction.
http://www.occourts.org/self-help/infraction/
Too bad you can't do a Trail by Declaration as you can for CVC infractions.
Schedule court and call in sick that day! And good luck!!!