Too bad packing.org is down. There was tons of information there that varied by state.

But if I remember correctly, youre allowed to have the firearm in your place of residence. If you are transporting it, you might as well be as safe as you can (legally) and do what Nightshade said.

-Firearm in a locked case, unloaded.
-Magazines unloaded and stored in a different compartment from the firearm along with the ammo.