Wow, that really stinks ;(. If it specifically states you are eligible for in home service, then call Pioneer directly and complain about the behavior of their authorized service reps/locs. If not, well, then you definitely have a conundrum. You might end up having to pony up the cash to move the set where they can repair it properly. Did you also purchase an extended warranty?
The folks over at AVS forum are pretty saavy regarding the Pios-
After just nine months and three weeks my Pro 150FD 60" plasma has stopped working.
It does not display any image attached from the AV inputs, HDMI or Composite.
Having issues with Pioneer's authorized repair centers who are refusing to come out to my home to diagnose the problem and insist that I bring the set to their service location.