I've posted some initial photos in my shop's photobucket page:
http://i1368.photobucket.com/albums/...ps9am22zfo.jpg
I found the tag along the side of the dash that reads "NC Dept of Crime Control and Public Safety", so I would say it's definitely not NC Highway Patrol. It appears to have been more of an admin or investigator's car.
The car was clearly used for some time by the Duluth police reserve, so I'm considering restoring it as used in service there.
It's in pretty nice condition and I'm glad to have found it.
I love your in-service car, Bullitt1609, very nice! I was searching for a Nebraska car to put back as served when this one came along.