thx997303 wrote:
But with the Maine permit, he still needs to avoid school zones, should go get his Utah permit.
More precisely, there's a tiny risk of being prosecuted under the federal Gun Free School Zones Act if you don't have a Utah permit. In order for this to happen, the local police that stop you would have to call in the FBI, the FBI would have to decide to ask for charges and the US Attorney would have to decide to charge you.
The US Attorney is unlikely to do that, because the federal GFSZA is probably unconstitutional, so trying to enforce it would probably get it knocked down.
Still, there is a small chance that all of this would happen, and it would really suck if it did. Even if the law does get knocked down by the courts, you'd still be going to court over it, and might have to fight it all the way up to SCOTUS.