President Carter designated October (10th month) 4th as National Citizens Band day back in 1978.
First Lady Betty Ford was also reportedly an avid CB radio operator. Her CB "handle" was "First Mama".
Citizens' Band put an end to that, not by regulatory design but by popular fiat. Originally, a license was required for Citizens' Band, too, but masses of people simply broke the law and operated without a license until the FCC was forced to bow to reality.
It was a form of mass civil disobedience that accomplished in its sphere what drug-legalization activists have never been able to accomplish in theirs.
And it worked: the 55 mile per hour speed limit was repealed. That (plus the gradual introduction of cheap and effective radar detectors, which allowed citizens to watch for speed traps while still listening to their car stereos) gradually ended the Citizens Band revolution.