Well, I would call it a bug. It just happened to me today by accident.
I had landed and my plane had stopped in the middle of the runway. I typed ".ef" and hit enter... and the accidentally touched the throttle. The plane jerked forwards and then I was in tower with "you have ditched" message
Exiting while moving should not be possible, or at least exiting should use the situation when the enter is pressed. No data should be taken in after that.