Am I being paranoid or is it common for dealers to up-sell their servicing when you take the car in? What should I have done and is there anything I should avoid?[/quote]

Answer: yes it it quite common for dealer's to up-sell...
but in you case don't worry your under warranty.... and this is your 1st service.. the only "up-sell" would probably be for accessories..

like ipod,mud flaps,...Full detail.. stuff like that..

GL