In cartomancy (fortune-telling using a deck of cards), the 9 of clubs represents travel, particularly long distance travel. I cant tell what the broken plastic piece in the tweet is, but it seems to have the lettering SDL? and the word TRAVELER under SDL?
There is a company called SDL that has several operating modules. I captured this:
SDL
sdlglobe.com/hrms.html
SDL Travel Management module enables you to manage requests for travel with ease and flexibility. Our travel module seamlessly integrates commercial, chartered and self-operated travel on any mode of transportation.
Maybe the tweet is some kind of code to his friends for Time to charter some travel/get out of town/get as far away from here as possible?
Good grief, these people are creepy.
I personally think the piece of plastic is a crushed water reservoir cap.. Maybe for a 300SDL Merc..