"I contacted valve support to ask for the shipping weight. My box is one ounce less, so I'm afraid one of those dirty Fedex Worker may have stole my charger. I'm fully prepared to press charges. But we will get to that when it arrives."

wow dude, way to conceited and look down on people who work hard. 1 ounce. You are paranoid.
"I've bought and installed cameras outside to detect when my package comes. I asked my neighbor if I could install one at their door for another angle of the FedEx man (Just in case he throws my package), but they told me no." yeah no shit they told you no. you are paranoid and probably come off as a creep to your neighbor now.
"One things that worry me is that my deck has been at one of the FedEx locations 8 hours longer than my test box. I've called this location several times to ask whats going on, and they just tell me it's being processed. Is my Deck stolen? Should I contact Valve support and ask if there is a known hold up at this FedEx node?"

Calm down it is probably still sitting on a truck and the truck will leave when it leaves.
"If I place another order from another steam account as a backup in case those pesky FedEx workers break my deck, will valve know and take my deck away?" You should check your pesky paranoid dirty self