I'm looking at the Popular Communication article right now that mentions my friend using the frequencies between GMRS channels and getting fined. I had many GMRS repeaters back then and your saying it was not doled out for consumer use? Hmm, why do I remember spending months getting a few business off our repeater frequencies because they were no longer allowed to operate there?
The 1980s was LONG before the GMRS and FRS bands being doled out for consumer use. Sounds like general freebanding that was coincidentally using the UHF airwaves. That's a stretch to construe it as GMRS/FRS misuse when I don't even remember seeing FRS walkie talkies appearing until 1998 or later.
There is no modern-era enforcement that can be found on record by searching the FCC's public records. I used to be a news reporter and I may actually take this one up as a freelance reporter and call the FCC to make a formal public records request.