The only WTF moment I experienced was "I... am... MEGATRON!"
Ok, for coolness of entry it was pretty cool, but how did he learn English? He was frozen before ever gaining the opportunity to learn and once thawed he was suddenly a fluent speaker.
Explanation 1: Mental processes were operational enough to learn from the conversation of the tiny fleshlings working close around him. In this case he would have been dimly aware of the passage of time, so I'm thinking he'd be pretty pissed off upon waking and feel like indulging in a little more random destruction on the way out.
Explanation 2: High speed download. He was close to midget information broker Frenzy who undoubtedly would have filled him in with all pertinent data: The proximity and aproximate location of the Allspark, Autobot meddling, humanity and it's technology, local communication systems (including the English language).
I'm backing Explanation 2 personally.