I went to pick up the RV at Merrigan's. There was one part of the job where they thought they had a better idea than I did. They didn't. They're getting the parts to do it right and gave me a ride to the nearest Starbucks while they got 'er done. Not ideal but a graceful recovery.
The reason it had to be done twice was that I wasn't as confident as I could have been about what I wanted done, and let them talk me into something different. Understandable, given my status as a true newbie, perhaps. So as I go on, this should happen less.