I think we all overlooked one thing on the 06 Sonata......when the
doors are locked, car running, key in ignition (duh), when you pull on
the driver's door handle, the driver's door unlocks and stays unlocked.
There is no doubt there are all sorts of little things you can do to
prevent a lock out (of course the car can only help you so much). So
there might be a little more to the original story, however, give the
benefit of the doubt, cars do strange things from time to time in this
age of digital technology.....