Gene, I'm using a CZ 75B 9mm. I'm thinking about getting a .45 too, just have not decided which to choose.
9x45, I'm in San Diego, I'm not sure exactly where Piru is, don't have a map handy at the moment. Is that north of Big Bear?
444, I believe you'd be ok if you have the pistols locked in a case (unloaded of course) that is in the bed of your truck, with ammo behind passenger seat. But, I am not an expert, YMMV etc.
Some more informed member might comment here.