THIS DEAL STILL WORKS!
I'm going to pick up my modem in the store today.
Actually what happened is this:
Office Depot is showing this item as currently out of stock, so you have to put one on backorder. Well, you can't use the coupon when you put the item on backorder because it shows your order as being $0.00
I tried setting for pick up in my local store and it said that you can't pick up back ordered items.
So, I called my local OD store and asked them if they had any of this item in stock (they had 2), and told them what my situation was: I have an online-use coupon for $25 off $75 and I'm trying to order this item for in-store pickup through your store. It keeps saying that I can't order this item from backorder. So they take my name and number, call me back a few min later and tell me that they'll give me the modem for $25 off, I just gotta go pick it up in the store today.
So this deal is still good! YMMV, but try and call your local OD and you can probably still get it