No, I had the same experience at a JoAnn's recently. They stinkin' have a groove to cut straight---which to me is useless. If the cutter cannot lay the fabric straight against the bottom yardstick the cut will be off.
I asked for 5/8 (presumably to get a good 1/2 yard after all is said and done). The previous cut side was off by almost two inches.
But you know, dealing with such "professionals" there, she still had it lined up to the thread on the 5/8 mark.
Now, there's been more discussion about such exact cuts. I don't expect at any time to get more than what I ask for, that's why I get it cut a few inches bigger, pay for the bigger cut, then deal with the "waste" after I take the fabric home, but I also try to keep a watchful eye, especially at that store, so that I'm not shorted "threads" either. I tolerate that store, the CS is just about non-existent, but when I don't have $ for the LQS or find something that works better, that's where I end up unhappily I might add.