Relax man. USPS / ups is terrible with tracking. I usually get my delivery before it updates and says "item has shipped." like 50% of the time it is that slow. The next day it will update and say "item delivered".
2008 335xi AT
Cobb AP stage 1, drop in filter, the rest stock
firstname.lastname@example.org w/ 1.86 60' (5,800' altitude)