There may be some confusion here. For many years the Waffle Houses with the yellow and black sign were called Waffle & Steak in Indiana due to another, now defunct, in state chain that used the Waffle House name. This is the restaurant the article is about.
Regardless, brought back some good memories.
That the Waffle House in the story closed for Christmas clued me in that this was not the chain, but a (slightly) different establishment.