If you reach a point in your Art career where you find it may be more beneficial for you to fulfill your own prints or use a printer that is local to you, you are always welcome to switch from Automated Fulfillment to Self-fulfilling.
All you need to do to accomplish this task is email cs@artstorefronts.com and ask them to either change you to self-fulfilling or automated fulfillment based on what you need.
In addition, you should really look into the Website Quick Launch Guide: Automated Fulfillment or Website Quick Launch Guide: Self-Fulfillment based on the change you has our team make.