AFAIK open carry is legal as long as the gun is unloaded*. Of course this will get you LOTS of unwanted attention.
What type of car do you have, a minivan, SUV, sedan, stationwagon, pickup, etc? Concealable (all handguns and long guns with 16" of barrel or less) arms must be locked in your passenger compartment* and the glove box doens't count as locked either.
Laws are in the gray on whether loaded mags, stripper clips etc are loaded guns. Some say that mags themselves count as guns even if they're a part.*
* of course, in the words of LA's great urban poets, check yo'self before you wreck yo'self.
For me, I have an SUV and a CCW. I transport my long guns in behind the back seat. Reason I don't have it in the trunk is if I get in an accident, I don't want it flying forward and hitting me in the head so it lays right behind the driver and passenger seat. Long guns stay unloaded.
I used to transport my handguns in a backpack with a padlock and mags UNLOADED in a separate zipped compartment of the backpack in the frontseat.
Now I don't know you and am in no way passing judgment on your character based on your looks, but if for some reason you're the type that's a cop magnet, I'd do what I can to keep from getting arrested if you get searched. I think if you're a clean guy who wears a suit all the time and drives a bling bling car (and not Black or some will think you're a drug dealer
) it'll make the difference on if you think you can get by with a loaded mag or not than if you're a guy with tattoos, unshaven and an older model car.
As I said again, check yourself before you wreck yourself!
And I WOULD NOT DO OPEN CARRY. It'll attract too much unwanted attention.
FWIW fixed blades concealed are a felony but folders, whatever size, concealed are AOK. Butterflys, stilettos, automatics, nanchakus, etc. are prohibido.
Leave your ferrets at home.