Your dealer changed your oil for 22 bucks?! Is that part of some deal for buying from them or something? That seems absurdly cheap, but props to you for finding that - it is definitely a good deal.
I just got the same oil and filter from autozone for just under 50 bucks. And obviously I did the labor myself.
The dealer here charges $26 including rotation and inspection. I guess they figure they can get you for other services. I don't let them touch my car anymore after they torqued the lug nuts to 300 lbs. Besides that, I can do my own service with buying 15000 mile oil for $28 bucks per 5qts full synthetic. I buy 10qts, put 6 in my car and 4 in my woman's car and call it good. I have 8000 miles left on the oil I have in now and I can rotate my own tires.