@irontoenail - There are several online companies which sell exotic game meats.
I know there are some which sell game meat from Africa (no endangered species, of course, only ones that needed to be culled in order to maintain the environmental balance in national parks) as well as things like caribou and reindeer meat.
And there are others which sell things that are closer to home, but still unusual for supermarkets, like alligator and rabbit meat, or game bird meats.
So, I'm sure there must be one or two that sell moose meat as well. The thing is, you need to be patient with them because they don't have a bunch of animals out back they can fetch when you put in an order. Especially with big game animals, there's no guarantee that you will get your purchase right away.