2100 Rideout Rd SW Fiero's is a little out-of-the-way and Google Maps are all jacked up. To get to Fiero's (and Dipwich Sandwiches), go South on Research Park Blvd and go across I-565. Once across I-565, you are on Federal property and the road is now Rideout Rd. Turn right at the first stoplight (Do NOT go through the Redstone Arsenal Gate!). Then turn left toward the restaurants (turning right would make you go to the new Boeing facility).