I know several people who have used S and L Mobile Mechanics and it's always good to have a reliable repair company in your phone for such a situation, especially if you find yourself in the Fort Worth area. Since they are based in Euless, they can cover both Dallas and Fort Worth, but prefer to stick mostly on the west side of the mid cities.
Anyway, I ended up needing Steve's help when I was over at the Fort Worth Stockyards this past weekend for an event. Turns out, my timing belt had snapped and I needed a new one. Steve was a lifesaver because not only did he show up in a flash, but he had all the parts and was able to get me back on the road without having to call a tow truck. If that's not good service, I don't know what is. These guys are definitely a company to add to your rolodex just in case you ever find yourself stranded on the side of the road with a forlorn look on your face.