Wow, that's not a problem you hear about much over here in England, haha!
To be honest, I think you've got the right idea with not engaging in any TUGs at the moment. You need to be able to deal with earthquakes if they strike and to quite frankly, if you're tied up then that just isn't gonna happen - definitely don't do any self bondage. If it's getting really frustrating for you then maybe just do some very light stuff with your friend - like using safety handcuffs etc??
Still, best be safe than sorry

x