The problem with sucking it up is that he's the only one sucking so what is the time line for this gig with people you already consider quirky and who dont want you there when it would make it far easier. I'd sort that out. Everyone has tried hanging with people who just dont work out. If it's not what you want to use valuable leisure time on dont do it.
I dont consider a locked up brake any more of a lie than a woman trying to manipulate me into doing something she wants by saying that she would do something stupid like put the kids safety at risk. The people in the cabin are walking in and flipping the switch and the OP is driving his butt off, setting up, trying to participate in helter skelter and then knock it all down and drive back to put everything away then get to bed so he gets up for work. Wife isn't being very considerate at all.
Tell the wife to hitchhike up there while OP takes the kids to a local RV water park. Take a Friday off work to make it a nice time.
I think the first question you need to answer is if you even want to party with these people. Is it really how you want it to be? There are plenty of great RV people all over to party with.
There is no way that I'd be setting up for such a short time. If you party with me and your bringing your rig, I'd have power, water, lawn chairs, touch of Tequila and a few kayaks and a pontoon boat waiting in the water. You could bring the rig up when you like and leave it for a while if you're coming back up. That's partying.
