I came across 4 or 5 cases of these tonight at my local WM, and grabbed a couple out of an already opened case, before the manager came and pulled them all back into their warehouse citing their Saturday street date on the TAC line. Much shorter and thicker than the usual BPs.
EDIT: Is this a WM exclusive (just re-read this thread title)? If so, I didn't even realize that. Makes me feel even better about finding these then...