From what it sounds like in the actual Gift Book, the restrictions only apply online. The physical coupon states: "Excludes clearance, grocery, alcohol, Meijer Extended Protection Plans, iTunes gift cards, Kindle gift cards, contract wireless phones, taxes and previous purchases."
For the online part, it says: "Use promo code GGIFT13 for online purchase. See meijer.com for online exclusions." Makes it sound like these exclusions are for the online part, and the other exclusions are for in store.
Honestly, I think this would be pretty easy to argue too. I might stop by sometime to see if I can double check, but I would easily wait out at midnight at Meijer to pick up a PS4 at 60 bucks off.