Angelo Ditty...name ring a bell?
My visit was around 1979, too long ago to remember any names. There were two guys, a chubby dark haired one in a cheap suit and a tall guy in sandals and light color, maybe tan high water jeans. The suit guy was more procedural and mostly in charge and Mr. Sandals carried the test equipment, a frequency counter and wattmeter with load and he made all the measurements on my radio. They arrived in a Ford sedan with black wall tires and small hub caps, although I asked if they had a van for direction finding, etc, and they said yes.
I had two documents from that I've lost over the years that I really wish I had, one a signed copy from the day of the visit noting all the things they found like a clairifier that worked on transmit and extra channels in the radio. That radio was a Pace 1000B.
Then there was the actual pink slip that was pink demanding a $50 forfeiture for not identifying my station. I was not charged for the clairifier or extra channels because they didn't catch me using them because I was using a different radio that was loaned to a friend that had a boat load of extra channels and he got caught using it on a freeband freq, so it cost him more.
That radio was an early Pace CB-166, the one featured in a smokey and the bandit movie and now they go for a lot of $$. Mine was from the first shipment into the country (I worked for Pace at that time) and it had a row of about six toggle switches to get a bunch of extra channels. One of the engineers at Pace, Larry Hirsch WA6SWG did the research for the mod and I copied his radio. I mention Larry as he had a couple of FCC enforcements against him, mostly for a famous high power CB repeater in the early 1980s.