Had the same problem, but not until I'd gotten home early last year. I can say that the bottle jack solution will work, but I used one bottle jack and a couple heavy duty jack stands. Jacked a few inches on one side, raised the stand there a notch, did the other, then back & forth until I could take the Monty was off my truck. Since both legs had problems (one was a pin, the other a gear), I opted to replace the single motor setup with a much heavier duty Bulldog two motor one. Now I can level the front when it's out by a few inches as well as lift it a lot easier. Having someone come to fix you in a campground may run into a lot more than you want, and you'll still have the same set of legs that caused the problem in the first place.
And don't forget to securely chock you wheels before lifting!
