Found remnants of the wave at three seperate Targets tonight, and one store apparently had 8 cases this morning by the numbers Guest Services gave me. Managed to get a single case at the end of the night at the last Target, so now all I need is an opener set. All the stores seemed to get the wave 2.5 refresh case as well, with the bits of wave 1, 2, and 3 mixed in to pegwarmerific results.
It's sure nice that they wisely packed the case out with two Hoth Wave Darth Vaders in it. I needed an extra few of those to choke on.