Check out the Triangle Business Journal article here. The Raleigh store, located in the Quail Commons shopping center at the corner of Falls of Neuse Road and Millbrook Road, will open on September 21st. Look for 6-8 more locations coming soon to the Triangle.
Click here for the Tijuana Flats' Gluten information (located on Page 14). Seems like they are going to be subject to the potential cross-contact found in the other Tex-Mex places.