Hmm, this has me curious, I am in Australia at the moment, and the eggs here are unwashed and are kept outside of the fridge. However, they look as if they have been washed. Is there a special kind of rinse eggs go through here that doesn't remove the protective layer? Or are they doing something insane to the poor chooks to get eggs this clean? I rarely see any feathers, bits of muck, etc.
Googling around it seems that they are heat treated for salmonella before delivery but it is still technically recommended to keep them in the fridge longer term in Australia. Just doesn't matter if you use them in a week or so.