lol - I pulled up to a DIY wash one time and was able to put the front half of the trailer in, then turn it and put the back half in. The roof would not clear the A/C. I have enough room at home to do it, but did think of a truck wash.
My advice, give one a call and see how much they would charge. If they sound like "oh sure, we do rv's all the time" I would go. If not, then keep rolling...
2013 Coachmen Freedom Express 320BHDS pulled by a 2005 F250 King Ranch CC
A rainy day camping is better than a sunny day at work.