this all looks to be in direct conflit with RCW 9.41.060
If not, then the exemptions provided for LEO wouldn't apply, since they obviously do, then must likewise apply to CC self defense handguns.
Otherwise all those law enforcement types on snowmobiles would be in violation.
I have no qualms about packing a pistol while snowmobiling in WA, for everyone 18 and older engaged in outdoor activity, and otherwise legal to possess a weapon (no felons or wife beaters)
this seems a non-issue to me, new law confliting with old law, generally new law is upheld in court over old.