Funny thing here is what's missing. What did the installer have to say about this? Certainly he can provide the details on what happend on his end- if it happened at all. What about a statement from the cable company?
This smells like day old fish.
This is so catastropic, one-sided and written by someone who apparently has no technical knowledge that I have a hard time believing that this actually happened.
Until there are some answers I would chalk this up as another hoax and not waste any time on it.
-Hal