Not that it really matters, I doubt that the question will ever come up unless one of those newbee inspectors with the crewcut and lots of guns want's to show someone how much power he has.
If it turns out to be a problem in any state we title/tag in, then I will simply remove the bulb
This could actually be more of a problem. Usually these guys say "If a light fixture is there it has to work"
I had one of those guys stop me and he found so many things "wrong" with the truck I'm surprised he didn't arrest me. Original reason for stopping me? "Your license plate is bent"
He then proceeded to find things like VIN number plate on trailer has serial number not VIN. ???????? I just be polite and say "Yes sir, whatever you say sir" and go merrily on my way. I'd like to have been there when he explained that one to his commander.