With all the technology being used nowadays, it's no wonder some things don't turn out right on a restaurant bill. It's a matter of pushing one button (once the proper menu screen on the computer is found) to ring an item up. And if several buttons have similar descriptions........there's where problems can crop up.
We've had it happen to us before as well (not at Cody's, though). It's usually worth a glance at the bill (or receipt) to see if it makes sense. I'd hazard a guess that most of the mistakes of this nature are unintentional.
Bill
