Chick-fil-a is known for this. One of my family members called the store to let them know they left out one sandwich on their order. The store manger drove immediately to them with 2 free sandwiches and some coupons. That's just insanely good service for fast food.
I've always been super-impressed with Chick-Fil-A's service even though their food is sometimes sub-par. That's why I continue to return. I know I'm going to get a decent, if not great, meal, and the service will be fantastic.
The yardstick for measuring the potency of a corporate culture is consistency over time.
