Updated to add that I've been back again (a few times. . .), and I keep bringing people by. Twice, the business was actually closed and the owner let us in anyway! He also gave us a free cookie one time (which was freaking amazing).
Finally, I received a coupon in my email and returned for a full-sized quiche (still amazing, BTdubs), whereupon I realized that they have a pie stampcard (12 stamps = 1 free pie).
Love this place.