You didn't mention whether you have a lockable trunk separate from the passenger compartment.
That makes a difference regarding how you can transport the firearm / ammunition.
Here are relevant wordings from the NJ laws link in this forum:
• Shall be carried unloaded and contained in a closed and fastened case, gunbox, securely tied package, or locked in the trunk of the automobile in which it is being transported, and in the course of travel, shall include only such deviations as are reasonably necessary under the circumstances.
• The firearm should not be directly accessible from the passenger compartment of the vehicle. If the vehicle does not have a compartment separate from the passenger compartment, the firearm and ammunition must be in a locked container other than the vehicle's glove compartment or console.
D. The firearm is unloaded
E. The firearm is not directly accessible from the passenger compartment of the vehicle
F. The ammunition is not directly accessible from the passenger compartment of the vehicle
G. If the vehicle does not have a compartment separate from the passenger compartment, the firearm and ammunition must be in a locked container other than the vehicle’s glove compartment or console;
2. To carry any firearm unloaded and contained in a closed and fastened case, gunbox, securely tied package, or locked in the trunk of the automobile in which it is being transported and the course of travel shall include only such deviations as are reasonably necessary under the circumstances from
The ammunition should be stored in a closed and fastened container or locked in the trunk of the motor vehicle in which it is being transported.
Everything focuses on ensuring the following:
a) the firearm is unloaded
b) the firearm is inaccessible from the passenger compartment (either in trunk or locked in container)
c) the ammunition is inaccessible from the passenger compartment (either in trunk or locked in container)
I haven't actually seen any wording requiring that the firearm & ammunition be in "separate" locked containers.
Perhaps someone could help point this out, it has been referred to quite a bit.
Maybe I'm missing some relevant section or case law.