I've heard at least 1 other story where a Tesla was being serviced (the owner was a VC, i think) and they guy didn't get it back for like half a year or more, it was also on hacker news. really makes me think twice about buying a tesla.
Follow some the Elon Musk mentions on Twitter. There are many cases of people not being able to contact their service centre, or people being told it will be months for basic repairs (like a new windshield) that are resorting to pleading to him on Twitter. I've never seen anything like it.