Well thats kind of lame. Most shops offer a free tune up after 30 days (the break in period, especially of the cables). Then free tune ups for the next year. If you only have to, I'd have one done after that 30-60 day period, then maybe after a year or so if you know how to do basic maintenance yourself. If not, then... well, I don't know what to do. Sounds like you got screwed to me.