This is an excerpt from the 2006 manual
² Exterior Lamp Fail-Safe Operation - The EMIC provides a fail-safe feature which will automatically turn ON
the low beam headlamps and all park lamps when the ignition switch is in the ON position and there is no
detected input from the headlamp switch.
² Exterior Lamp Load Shedding - The Totally Integrated Power Module (TIPM) provides a battery saver feature
which will automatically turn OFF all exterior lamps that remain ON with the ignition switch in the OFF position
after a timed interval of about eight minutes.
So, if the switch is ignition switch is left ON, I would assume that the lights would remain ON.