Quick question

Hello, we have a restaurant client that we built a site for and linked to a third party on-line ordering system. They have now opened a second restaurant and had us build a second website for the new location. He will soon be adding on-line ordering to the other location as well (same third party but separate ordering systems). How would you recommend we differentiate the two locations? The third party ordering system does not have the capability of providing a dropdown to choose a location so we need to put something in place that will not confuse people or cause someone to order on line at one location and, not knowing, go to the wrong location to pick up their order. I hope all of this makes sense. Here are the two websites: www.habanerotacosgrill.com (active on-line ordering) and www.habanerotacosstp.com (no on-line ordering is active yet).