A: The logo is wrong. Look to your left. My avatar has the lambda clearly placed in the large circle, with the number relegated to the small one. The only reason to switch them is that you are trying to draw attention to the 3ness.
B: That shirt is clearly newly printed AND way too small for the person wearing it. Why would you go out wearing a shirt that is so clearly uncomfortable?
C: Wow, it sure was easy to get a well lit photo of the shirt without anybody noticing!!!!
D: Valve is not run by idiots. They are not going to print off and hand out shirts for an unannounced game that is going to be a huge deal. Even if they did, no employee is going to wear them in public. Why? Because Valve's hiring policies would never allow such a person through the door. Every single employee is chosen based on a dedication to the Valve vision. There are no disgruntled employees to mess things up, because Valve has a 97% employee retention rate. That means that of the people that they have hired, at most 30 have left the company. They do not have a corporate culture that leads to resentment. There aren't even any interns to mess things up because...well.. Valve doesn't have interns. I know. I tried.
I'm a Courtenay man myself, being a bouncer wouldn't be a bad idea, though it can get quite rough up there. I'm only familiar with JJs, but based on your size, you'd likely be able to handle yourself. So I say go for it.