That's a good spot to watch moose from. If you watch the video in the attached link above, you'll see a few examples of how things can go wrong so quickly. It's the unseen variables that can change the dynamics of a wildlife encounter that I worry about. Using your close encounter as an example, how would the moose react if a nearby dog jumped in the water chasing a stick. What if a dog on the path in front or behind you started barking at a squirrel? If you're within six feet of a moose, you don't stand a chance of getting away from the moose if it turns toward you. They don't need to feel threatened by you to walk right through you if you're in the path they decide to take.
*steps down and kicks soapbox off to the corner*