Might be a dumb question... but couldn't you buy the game for $30 at one sears then return it to a sears that has it on clearance, then simply rebuy it at their clearanced price?
Went to two in the morning and the glitch worked (Los Angeles area). Just came back from two different ones about an hour ago. No go on those, only 50% off the second game. It looks like they fixed it... though I didn't try the ones i went to in the morning.
I wouldn't get to excited if you call and they say the inventory system says it has one or two in stock. When I use to work at sears our inventory system was always a little off on games due to theft or other reasons. I would only make the trip out if they told you the system said it had minimum...