I have a letter that was picked up in Hackensack going to Keyport. Can I cut the delivery and pick it up in Keansbey if it's their..

Nah partner, got to get it at the final destination....

ABSOLUTELY NOT.... THE LETTER (MUST) GO FROM (ORIGIN) TO (FINAL DESTINATION).... NO (INTERCEPTIONS) PERMITTED.... THAT'S AN ABSOLUTE FACT.

You can stop delivery & recall the package to sender if you are the sender. Otherwise hard to stop. Talk to FedEx