Some people have said there is no such thing as a stupid question... I aim to prove them wrong!
In "Ground Zero" when Jack reaches L.A., he has instructions from Abe where to pick up a weapon. So he goes to the mailbox centre, finds the box numbered 367,(too bad it wasn't 357) and uses the combination R-10 L-22 R-13. My question is ....... do these numbers have any relevance or were they pulled out of thin air?
Knowing that you like to throw obscure things into your books, I had to ask. The closest I've come up with is the 10th book in the Bible, chapter 22, verse 13.
"Out of the brightness of his presence, bolts of lightning blazed forth"
Anyway, intended or not, that's not a bad reference for Jack showing up in LA picking up a pistol.