Section 25400 does not apply to, or affect, any of the following:
(a) The transportation of a firearm by a person when going directly to, or coming directly from, a gun show, swap meet, or similar event to which the public is invited, for the purpose of displaying that firearm in a lawful manner.
(b) The transportation of a firearm by a person when going directly to, or coming directly from, a gun show or event, as defined in Section 478.100 of Title 27 of the Code of Federal Regulations, for the purpose of lawfully transferring, selling, or loaning that firearm in accordance with Section 27545.