Orange County OC Meet & Greet, Take 2.

(c) Subdivision (b)  does not apply to the possession of a firearm
under any of the following circumstances:
(1) Within a place of residence or place of business or on private
property, if the place of residence, place of business, or private
property is not part of the school grounds and the possession of the
firearm is otherwise lawful.
(2) When the firearm is an unloaded pistol, revolver, or other
firearm capable of being concealed on the person and is in a locked
container or within the locked trunk of a motor vehicle.
This section  does not prohibit or limit the otherwise lawful
transportation of any other firearm, other than a pistol, revolver,
or other firearm capable of being concealed on the person, in
accordance with state law.
(3) When the person possessing the firearm reasonably believes
that he or she is in grave danger because of circumstances forming
the basis of a current restraining order issued by a court against
another person or persons who has or have been found to pose a threat
to his or her life or safety.  This subdivision may not apply when
the circumstances involve a mutual restraining order issued pursuant
to Division 10 (commencing with Section 6200) of the Family Code
absent a factual finding of a specific threat to the person's life or
safety.  Upon a trial for violating subdivision (b), the trier of a
fact shall determine whether the defendant was acting out of a
reasonable belief that he or she was in grave danger.
(4) When the person is exempt from the prohibition against
carrying a concealed firearm pursuant to subdivision (b), (d), (e),
or (h) of Section 12027.