beermenus.com can most likely help you find a place close to where you're at, but if you're close to Villa Park, last time I was at Foremost Liquors they had two unopened cases and a full shelf ($10.99 per bottle). They should still have some left.
I only bought one bottle and am totally regretting it now. Should have gotten a few more when it was everywhere.
Algonquin Woodmans has a ton left. If you go, it is by the coolers that are on the southern end of the store (not in the main beer section).
Picked up a couple at a grocery store in the Hammond area for 6.99 each. Tasty stuff... EDIT: I was corrected by my wife. It was Strack and Van Til (sp?) in either Munster or Lansing.
It could be either Strack's, or Strack & Van Tils....they had nice big displays of Alpha on, at $6.99. They locations all across NW Indiana (aka The Region).