EDIT:
Ok, went through all the fuses, to no avail. But now I notice that if I tap the light off and exit via the PASSENGER side door, the light does not turn back on at all, not even timed.
While fussing though the interior fusebox, I noticed a diode. I'm wondering if that diode is responsible for the timing of the dome light to turn off? I'm also wondering if that same diode is responsible for another quirk, that being that I cannot adjust the brightness of my dash lights.
I know it sounds odd, you would think the brightness of the dashboard lights would be controlled by a simple potentiometer, but the pot does nothing when I try to turn the brightness of my gauges up or down. Problems related? I dunno.... I kindly beg assistance.