That s*cks. I'm glad you didn't get hurt.
I agree - you won't likely be able to get your money back. Ask around and find another shop. Training and certification aren't the only questions - they have to care enough to apply their training and pay attention to what they're doing. I'd be surprised if Trek authorizes anyone to assemble a Madone who hasn't been through some type of Trek seminar.
Club riders usually know who the good mechanics are. Ask a few people you know. It shouldn't cost that much to have a competent mechanic check the bike over (I would think $75 or less) - unfortunately I think you're just going to have to eat that much.
Speed comes from what you put behind you. - Judi Ketteler