2 4-packs of LED light bulbs $0.00 @ Ace Hardware YMMV

Ace Hardware has LED bulbs on sale this month, BOGO. However, if you add two to your cart they both ring up as $0.00. Obviously a price mistake. Works on items 3565801 and 3565843. YMMV as every local store is different, but it worked for me when picking up the fire extinguisher that was recently a FP deal.
http://www.acehardware.com/produc…=118251486
http://www.acehardware.com/produc…=118251516