Some customer satisfaction surveys are implemented without the customer ever knowing. You see it all the time with large fast food chains when they introduce new products or menu items that you can only find in certain regions. If the food gets good customer reaction in that area, it's likely the restaurant will release it to their national audience.
If this new product is offered in your area go in and give it a try. Chances are they'll attach some incentive to it, like a free soda or fries.