So, the whole story is. . .my friend and I got in a couple of good runs on not so great snow. But hey, we're on VACATION! so who cares. The flask (actually 2) came out and we ended up imbibing at the top for a good hour or so. Oh goodness, it was a sad scene.
The lifts were closing as we made our way down absolutely sloshed and hounded by the ski patrol. The truth is I don't remember falling hard enough to hurt myself but it must have happened like Iain's picture.
Thanks for the advice. I think I'll be fine with gentle use after a few weeks. It feels quite a bit better after a full day and a half of RICE and NSAIDS. I will report back for posterity.