First of all, if you're closer than 30 metres, then you're too close, get a telephoto lens and shoot from far away.
If you want to see a moose, then the absolute best way to get a good look is to learn how to hunt the animal.
Hunters spend countless hours, days, and sometimes weeks tracking their game before hunting season even starts. They are experts on their habitat, their habits, their preferred foods, their behaviors and everything else that will help them find the animals in the wild.
If you want to learn how to find any animal, research how to hunt it, and use the same techniques to go out and shoot it with your camera.
There are lots of tutorials on youtube on how to call in a Moose, one good one is by a guy who calls himself the "Moose Whisperer" he thoroughly details how to get moose to come to you. (There is no actual hunting in this video, it's mostly just of him talking, no gory details, and he finishes of by showing some footage from when he called in some moose for a photo shoot.)
How to call a moose - The Moose Whisperer.