Chicken Little Was Wrong...
So sorry to needlessly freak everyone out. The first clue was that several people posted today about doing, in some cases huge loads, at WM. So I went back to several of the Albertson locations that worked for me on Sunday. And guess what? All 3 of them easily loaded $1k OF VGCs for me. So it's not MoneyGram at all. It's just that several Albertsons have individually hard coded, and AFAIK all of my local WMs have as well. But overall there is no national hard coding as of yet. So I guess I created a needless panic. So sorry about that.
Not that it couldn't happen tomorrow, but it's not happening today. For which I am so grateful, since I have so much left to do.