Do hand tools not apply to the bag sale?

I want to start by saying I am not upset with the cashier and this is all to do with menards POS system. I tried to purcase a masterforce socket set SKU: 2378285 and the 15% off did not apply at the register. The cashier tried but the system did not let her. This set fits square in the bag without risk of ripping through the side and sticks out of the top 4". I reread the terms printed on the bag and it says "we allow items up to twice as high as the bag to qualify for the discount as long as it fits inside the bag." I did not try to argue and just told her I did not want it anymore. Is there a reason why the system excluded the sale even tough it fits the terms and conditions of the sale and not listed in the exclusions?