Like Norman my cars 10yrs old now but looks far from it, and mine had it's 10yr service done before it's anniversary to get another yrs warranty, it was chucking down on the way home after the service, so left the car for a couple of weeks before hoovering and wash and wax. That's when I noticed the rear set of mats were missing and being it was late on the Friday then, the valet team had gone home for the weekend and could not check, but no mats were found, to be fair when I noticed and rang Lexus they were picking a CT up so offered the mats out the back of that as a replacement which I accepted, but I never mention about the wash it was given, take a close look at the front of the car, I have cleaned the left side and left the right untouched to show the difference of the smearing. I don't know what the cleaning stuff or coating was used but looked like they hadn't wiped it off, I tried to remove it with polish, then T-cut none of which touched it so had to use G3 Faracela, I think that's how you spell it and it still took me 20 mins just for the left side.