Yeah, I've done the statue thing many times and have been caught in some very unusual positions and many of them were like yours... getting painful with each passing second!
Next time that happens, try moving like molasses in January and you'll be surprised with what you can get away with, even while they're staring at you. I learned that because I couldn't stand the awkward pain any longer and just went ahead and started to reposition myself to something more comfortable and got away with it.
What camo were you in?
iSnipe