1) Sometimes the player takes a long time to respond to the "ignition off" command. When this happens, it plays for a long time after shutting off the ignition, perhaps long enough to make you get impatient and yank it out of the dash instead of waiting for it to shut off.

Mine did this in my old install quite often with 2.0 b13. I've sat there when it does it and it would run for another 2 minutes or so before shutting off, never an entire song... And when it did this, it didn't loose it's poition in the playlist like it does on occasion on a regular power down.