Doubly impressive: there are spots you can visit in the vtour, that you cannot see in real life because they're outside the pedestrian walkway.
Tried to research what the meaning / story is for these figures. My best guess with 10 minute googling is that they represent defeated enemies.
Actually, no. The guards (in the Valley anyway) take their jobs very seriously and have seen it all... you'll get unceremoniously removed for trying to break a rule.