I wont let anyone else but me service my bike, let alone wash it.
My last two I did all the service but when I bought this one the dealer had for $2,000. all services paid for, parts also, and I also got a ten year warranty on the power train at the selling dealer, Gateway Harley St. Louis,. So I said what the hell, free service and 8 more years warranty. This bike is a keeper so I'll find out if the warranty is for real.
My dealer actually does a pretty good job at washing. Same guys do it ( no turnover). I actually take it in without service and tip the guy, they do a good job. I will wipe off some water spots when I get home.