Lost is the point at which we give up. If I don't give up, I haven't lost it. :: Wanders off to search harder in places he's already looked. :: (I think this behavior outlines mental instability...)
I don't think that would work. I'm pretty sure you have to show them the phone so that they can see the condition of it and stuff, specifically so that won't happen.
I know US Cellular lets you purchase it at least a couple years after you buy the phone. I don't know anything about Sprint.