1. He posted this on his company blog. Not a personal blog, not medium but on a company blog. I think he's hoping to get some business from the exposure. I'd be planning to leave a company quickly if my boss posts personal rants that are not business related on the company blog.
2. He outed the one rep that told him the truth. He gave the date and the name of the rep that told him Elon was driving the car. Why would you do that?? Perhaps the reason why the other reps kept mum was because they knew Marty was a difficult customer.
3. He goes on about having a new baby, about how his electrician was calling to install some power-ups in his garage. These things are not relevant to the story. Simply tell your electrician the car has not arrived yet.
He also mentions that "In 21 years as a founder/CEO of my own company, dealing with Tesla has been the most bizarre and strange experience I’ve had interacting with another organization"
That simply cannot be true.
Bottom line: Marty thinks the world revolves around him and is really upset Elon doesn't care about him.