I've only experienced that a couple of times but none have lingered for a tip.
The first time, they sort of helped me back in. Unfortunately, I was new or I would have been forceful that my wife helps and no one else. But we got in, just a fair amount of extra work.
The second time, I knew going in that they required their people to help you back in. This was down at Bluewater Key in Key West. Their web site says it ahead of time and they actually did an OK job getting me into the site. I just wish they'd went away at that point and let me straighten out. The guy across the street came out and chuckled at the arm waving of the girls- he says they do it every time and each time he's still yet to figure out what the alligator motion means.
No tips unless they hookup my sewer.