Wal Marts will be carrying Star Wars toys, simply not the Clone Wars 3 Packs. This makes no sense to me, because as you stated, if there is product in the back they will be selling it and with only 10 figures on the pegs they should restock. Personally, I would have talked with the manager about this situation. Now, I am not calling anyone out (this is just to vent), but it is so easy to complain about Wal Mart, but I don't see the collectors trying to do anything about it.
Chris, perhaps you could clarify for me why you could this this happening, I have a feeling that I am just missing something. If there are no Hasbro "not to be released by..." than I see no reason why those items could not have been taken out from the back for you, seems to me like pure laziness.