The only advantage to having a CCW, I see, is in that area of the Federal Gun Free School Zone (FGFSZ), between the 1000' from the school property (Federal Law), but not yet on school property (NRS).
Meaning you can drive the outskirts of the school property, without being on the school property itself, and carry concealed.
An OC would have to unholster/unload and lock their unloaded firearm in a lockable case. to legally traverse the area, and stay off the actual school grounds.
I find myself in this situation, in Fallon, a couple of schools are on or near the main roads, and I have to go through a FGFSZ, and we have some friends that live in the FGFSZ.
I don't think you get any protection, in your vehicle and since I don't have a CCW... yet, to follow this law to the letter, I would plan ahead, and put my unloaded firearm in my gun case and lock it, or detour around the area.
I've talked to local LEO's they tell me,
1. The don't enforce the federal law or FGFSZ directly.
2. They would have to catch you doing something else in the FGFSZ and would propably tacked it on.
It's really a matter of taking a gamble. I've never been pulled over in a school zone, but there is always that chance. The Local LEO's can't act on the charge directly, does this mean they won't charge me with it? (I wouldn't count on it). I'd hate to ruin my life by not being inconvenienced.