Thanks guys. I'll bring up the alternator issue again with my tech. I think he's reading this thread too. Right now, the current suspect is a faulty shift indicator sending intermittent info. I'll post an update after I get my car back after the latest round.
1995 E320 Wagon Moonstone Grey/Parchment 106K mi.
2007 E63 AMG Graphite/designo 75K mi