FedEx has sent the below message regarding current service delays in their network:

The St. Louis, MO (STL) and Cinnaminson, NJ (CIN) Service Centers are facing severe capacity constraints. Pickups may be deferred until the next business day.

FXF Service Centers currently 2+ Days behind for deliveries:
(AVO) – Abington, MA
(BSE) – Bethpage, NY
(CIN) – Cinnaminson, NJ
(DEN) – Denver, CO
(LNY) – Long Island/West Babylon, NY
(STK) – Stockton, CA
(TAC) – Fife/Tacoma, WA
(WLI) – Bethpage/West Long Island, NY