CVS - ECB Deal on Dean's Milk - Illinois Stores Only

If you shop at one of the Metro St Louis CVS's in Illinois don't miss this deal.

Deans Milk, gallon (Whole, Skim, 1% or 2%) - $2.79
Get a $1 ECB
Final price: $1.79

I can't read the fine print on the online ad to see what the limit might be.  Kas thinks it's probably two.

Thanks, kas!