I drove truck over the road for 20 years, covered 48 states and several provinces in Canada. I never carried due to Federal law prohibiting firearms in commercial vehicles, not to mention the problems with our northern border. In that 20 years I put on about 2 million miles, which included thousands of stops for rest, breakdowns, meals, loading, unloading, you name it. Never had a problem with the criminal element even when going into places that were much seedier than anyplace any of us would even consider going with an RV.
In short, if I wanted to go to Alaska, I'd leave the handguns at home and enjoy the scenery. I am an avid hunter and gun owner too, and I can understand the desire to carry, and have nothing against it, but I don't think I would spoil the opportunity for a trip up there based on handgun restrictions. Life is too short to waste the opportunity.
Just my $. 02