Walmart is open 24hrs.
Not all of them. And yes, really, and yes, I’m sure.
As for mfms experience I don’t really know why updating the register would have taken more than a few minutes, and if it was going to be more than that they should have paged it overhead so shoppers would know. Are you sure they didn’t do that?
They didn’t do that. There was no warning. I’m 100% sure.