Interesting, I picked up my Y yesterday. There were a couple white Ys there awaiting pickup, plus one red, one MSM and one more that I can't recall the colour of. Strange that mine came in and yours hasn't, even though your order date was much earlier than mine. I know that Tesla used to build cars in colour batches and I assume they still do, but their whole production and delivery process doesn't seem to have a lot of logic behind it for outsiders to make sense of.
Hope you get yours soon. Mine was in perfect shape, a slight gap difference on the hatch and a couple of window trims that don't line up perfectly with each other but nothing you'd notice from further away than a couple of feet, and nothing that I care about. The panel for the emergency release in the frunk was disconnected but a 5-second adjustment by one of the staff popped it back into place.