Well, after the up close bird nesting controversy, I have to say, this looks like a pretty dangerous situation. It is hard to tell the distance to the moose, but looks too close to me, especially sitting down. Moose are dangerous and there are reportedly more injuries from moose than bears each year. If the moose decided you were too close, you wouldn't have a chance.
Having said that, I was walking through the forest in Alaska one time and as I came around a tree, there was a very large male moose laying down in the shade. I startled him at a distance of about 6 feet. He startled me. He jumped up, and I started walking backwards. He was 6-foot tall at the shoulders. Fortunately he didn't charge and once I got behind a nearby tree, he posed for me:
http://www.clarkvision.com/galleries...185.b-700.html
But I would not sit down in the open like you did Fabs. Maybe crouch but in a position where I could move fast if he started to move my way.
Roger