The mother  f a western Pennsylvania elementary school teacher who died in crash while driving drunk is blaming PennDOT and poor road drainage for the wreck.  Thirty-five-year-old Farrell Elementary teacher Melissa Miller died Feb. 27 when she was thrown from her vehicle which rolled after hitting an icy patch on the Shenango Valley Freeway. Her mother's lawsuit claims PennDOT and various parties involved in development near the road are responsible for a plugged stormwater pipe that backed up, causing the ice. Police found that Miller was driving with twice the legal limit of alcohol in her system, plus enough codeine alone to impair her driving. PennDOT has yet to respond to the suit.  Does the family have a case or is this a frivolous lawsuit?