Another reason to obey the light:
A UH-1H landed near the staging field at Ft Rucker AL 3 miles short of the field with a transmission chip, and no secondaries. Who would have been tempted to continue to the field?
When he rolled the throttle off from the idle position after landing, there was a huge grinding noise and, in his estimation, the blades turned only turned a further 5 times or so before grinding to a halt and twisting the aircraft!! Transmission had siezed.
Flight manual does require land as soon as possible. As I said above, each system is different, and I would follow the flight manual unless there was a safer course of action.