Sheetz review: 12 packs of coke and pepsi products

I have been to a few different sheetz in the last week and none of them have had a price posted for the 12 packs of coke or pepsi. I used to see signs like 2 for $8 or buy 2 get one free. Just wondering if these deals are always going on and they just dont post them or if the prices change that often they have to keep taking the signs down. Its very frustrating having to find a employee and they dont even know the price and have to check it on the register but cant tell me if there is a deal till they ring up 2 casesat witch point i just end up buying 2 at more than i wanted to pay for them.