I had the same issue but ording front park sensor it took them two weeks, i guss thats the price of a new model, no parts available in the market yet
Often they keep parts at a hub to serve specific regions so you might be close to one of those. I remember looking up parts for Lexus and that's one thing I found out, surely other car makers probably do the same thing. I bet asking your dealer might reveal this.Strange, I had a new windshield in days. I guess it's geographic, as my fix was in NYC