不是瞎寄, USCIS 的通知上明明說了: 現在就可以按轄區寄
USCIS will accept Forms I-129F, I-131, I-140, I-360, I-485, I-765 and I-907 filed with the new “Direct Filing” location in advance of the July 30, 2007 effective date, that are otherwise properly filed.
http://www.uscis.gov/files/pressrelease/UpdateDirectFiling062107.pdf
關鍵是那通知沒說 I-485 和 I-140 現在在哪兒有沒有關係。