They may have kept the restaurant open and just closed the drive-thru lane. That's pretty much killing your lunch business, but the store is still effectively "open".

[And yeah the coupon thing is still there. I once spent half an hour arguing with a woman who knew about this fact and was trying to convince me a free Strawberry Shake was equivalent to a free Slurpee coupon she was holding. Had to say no to that one.]