From an insider at the OU:
-Not all the bakeries make them on pareve lines. You'd have to know which bakery made it, and they cross ship. We aren't allowed to give out the codes which change every year. I've found East coast product in West coast bakery home towns, etc.
-The belts that take the cookie into the oven at some bakeries share the line with Chips Ahoy and they have DE chocolate chips.