^Transformers T-Shirt. Definitely looks like the wooden structure was made like that on purpose.
^Random picture of a semi.
I'm not denying that it looks like a semi, nor am I debating whether or not Optimus Prime looks like semi. All that I'm saying is that it looks like the front of a semi...nothing more, nothing less.
It could very well be a tribute to Transformers, but there's nothing there to show that it's anything more than a randomly placed reference to something modern...a theme that AC seems to be all about. It could very well be a tribute, I'm just advocating that there's no need to jump to conclusions...in any scenario.