"scanner land type"
My Dad was the scanner land type...as well as the Citizen's Band radio type. We had a powerful CB base station radio and big antenna.
Funny story, when I was 16 (Circa 1981), I inherited my Grandpa's 71 Olds Delta 88 (only 21K miles on it). When it was transferred to me, my dad had custom plates put on it, with our CB call letters (KEL3455). Because of the additional letter, the plate looked like a commercial light duty Truck plate ...Minnesota allowed that back then, I guess?
I'd get pulled over a lot with that car, not just because of plate confusion, but no doubt that was an extra factor a LEO would be curious about, as I was frequently asked about it. Back in the Day, I did a lot of recreational night driving (cruising Main street). My Dad would ALWAYS know when I got pulled over, because when the police scanner would blurt out our CB call letters, my Dad would wake up from full slumber.