I can just see a Leo putting your gun in your truck then calling a buddy to pull you over and charge you with CCW
Not possible, well not possible to be convicted IMO. I don't think it would be hard to argue that "about his person" does not include the locked trunk. My pickup is a different story.
14‑269. Carrying concealed weapons.
(a) It shall be unlawful for any person willfully and intentionally to carry concealed ABOUT HIS PERSON any bowie knife, dirk, dagger, slung shot, loaded cane, metallic knuckles, razor, shurikin, stun gun, or other deadly weapon of like kind, except when the person is on the person's own premises.
And from the AG firearm's law document
By using the phrase "concealed about his or her person," this law makes it illegal to have a weapon concealed not only on a person, but also within a person's convenient control and easy reach.