Day 7....
They installed another DDE and finished programming the car. They checked my other issues besides the initial overfilled oil (e.g., diesel smell in cabin; parking brake) and everything looked resolved. They go and start the car, and it won't start. They received a DEF message saying the car had no fluid and would not start (car obviously has DEF).

WTH is going on...

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2012--E92 335is
2011--E70 X5d
2011--E89 Z435is*
2009--E89 Z435i*
2008--E92 335i [ED 2/23/08]*
2007--MkV GTI*
2006--E90 330i*
2005--E83 X3*
2004--E83 X3*
2003--E46 325Ci*
*retired