Wal-Mart's new coupon policy??

Has anyone ran into Wal-Mart's new coupon policy? I went in the one in Enid a couple of weeks ago and had several coupons to use. The cashier made a big deal of counting them and then informed me that their new policy limits customers to only 20 coupons per transaction. She told me it was a corporate decision so I went to the Wal-Mart Corporate website looking for information. This is what I found:

There is no limit on the number of coupons per transaction.

And this:

The system will prompt for supervisor verification for:

• 40 coupons per transaction.
• A coupon of $20 or greater on one item.
• $50 or more in coupons in one transaction.

You can read the entire coupon policy here.

So, what do you think? A local store policy? Or a cashier who doesn't like coupons? I don't know that I've ever had more than 20 coupons, but I believe I'll print off this webpage to carry with me for future reference.