I ended up going to Cobb Tuning in plano. Got my alignement doen there as well (with me sitting in the car). Alignment was $99 and the tech inspection was $40. I've had too many bad experiences with chanin places like Firestone etc that I didn't want to go to one of them. I probably could have saved $30-40 by going somewhere else but Cobb did a nice job.
Oh, and the miata passed tech :)