These "deals" usually aren't as "free" as the buyer thinks they are.

Most of these type promotions require that you have your regularly scheduled maintenance done with that dealer. So, they aren't giving you the apparent "perks" for free or just for being their customer. Over the life of your car, the items you mentioned could add up to $600 or so. That is the sort of money a dealer won't (can't) give away if you have bargained for a good sales price.

I believe that if you had asked when you bought the car what terms there were with that promotion, you would have found out the restrictions.

It may or may not be in the fine print somewhere, but the bottom line is anytime you think you are getting something for nothing, it pays to ask and make sure.