From what I have seen over the years every shop is different on the rates and whether you bought the sled from them they will give discount on parts. If your talking oil change, grease, chain tension, track tension and general look over probably between $160.00 to $200 and then add if your changing gear oil, plugs, hyfax or any other items.
If you call them they should have serviced enough by now to have a package rate.