救命呀!! 救命!!

上周五我的律師寄了我的I140的RFE,用的是USPS的Certified+Priority+Return Receipt. 今天一查status, 居然沒寄到(具體信息如下):

Label/Receipt Number: XXXXXXXXXXXXXXXXXXXXXX
Status: Notice Left

We attempted to deliver your item at 11:43 am on August 21, 2006 in MESQUITE, TX 75185 and a notice was left. It can be redelivered or picked up at the Post Office. If the item is unclaimed, it will be returned to the sender. Information, if available, is updated every evening. Please check again later.

請問有沒有誰遇到相同的情況? USCIS(TSC)會不會有人去郵局pick up? 最壞的情況是不是要重遞RFE? RFE的deadline再有3周就有過了,真急死了!! 請大家一定要給出出主意呀!!!!!!!!!!!!!!!!!