I happened to be in the store today when the delivery guy brought in the Surly Darkness. I had pretty much written off finding one. The store got one case, and almost all of them were spoken for before they were sold. I happened to be there at the right time.
I also picked up some Nosferatu, a bottle of Eric's Ale, both of which are excellent beers. But, I wasn't paying attention and grabbed a bottle of "Southern" Henisphere Harvest rather than "Northern." Not sure how fresh this will be.