Active Self Protection

It appears the right leaders are in place to create some sort of national concealed carry legislation. I drive across the country often and cannot take my self-defense firearm for fear of getting arrested or fined. It is ridiculous. The patchwork of gun laws is unconstitutional.

Knowing the different laws in different states can be challenging as you travel through several different states on a road trip. When teaching classes I drive to a fair amount of them and that is always a concern. The FLP app does have a pretty good list of reciprocity so I refer to that often. Now that you mention it, I've got a trip coming up that I should probably dig into a little.

I suppose it really depends on the state that you're in but I'm not aware of any states that has a law against an unloaded secured (in a locked case) as you drive through. But I typically drive South and the states down South seem to be a lot more 2A friendly.

Neil said, "but I'm not aware of any states that has a law against an unloaded secured (in a locked case) as you drive through."
I will research later, but as I recall D.C., New Jersey, Connecticut, and New York, especially New York City, all had such restrictions.
I have not looked at the FLP reciprocity site, but can recommend both https://handgunlaw.us and the USCCA Reciprocity Map (https://www.usconcealedcarry.com/resources/ccw_reciprocity_map/) as sites that have details on each state's laws and are kept up to date quite well.
NRA has a similar site, but honestly, I do not trust that one to be properly updated.

Also, be sure you understand the difference between concealed carry & license reciprocity on one hand, and secure storage and transport on the other hand.
There is a federal law that appears to make it legal to travel through a prohibited state with proper secure storage, as long as you do not stop, especially overnight. However New York and New Jersey in the past have been known to be pretty nasty about how they "honor" that law.

All these are good points that emphasize the need to have a national reciprocity legislation to eliminate this patchwork of restrictions affecting our constitutional right. Could you imagine the uprising if this happened to driver's licenses?

National reciprocity would not change the patchwork one bit. All it would do is make every state recognize all state-issued permits. Each state would still have its own no-carry zones, duty to inform, signage as civil trespass or criminal act, etc.
No different than one state with a default 35MPH speed limit in cities and another one with 25MPH default in cities, but each honoring the other's DL.