I am out of town and my car is ready. The DS stated that he is willing to deliver the car to me on Sunday night when I get back into town even though the service center is closed. Will meet him at the service center which is less than 10 miles away from me. The brief search turned up that people did not tip the DS. Given my situation I feel like I should. What do you guys think? Since you guys know how extensive the delivery process is what amount would be good? Thanks in advance!! These next two days are going to be hell!!