I contract guide for Government Wildlife, Search and Rescue, Forestry, and occasionally the RCMP.......my weapons I tend to carry are simply overlooked by the individuals I'm guiding.
They do notice them after a few days, and are never mentioned,even in Provincial Parklands.......I got one handgun confiscated once, went to court paid the fine, and got it back.
I don't have much experience with Moose, as I live in the Highcountry, that lacks the water, and it's the terrain I know well so that's the type of Guiding I tend to do.....I also can't swim worth a shit, so I avoid water.
And your right about Grizzlies surviving multiple gunshots......I skinned one with 3 healed wounds from some sort of .30 Cal from a few years before.