Can’t recall that Mayberry had a single resident, or visitor for that matter, of the high melanin skin content persuasion. Not my experience traveling through any towns in any part of the South. Being a 60’s Democrat, Andy probably set up roadblocks and checkpoints.
that’s why it was so quiet and peaceful
In 67 this guy showed up as the coach.
“Opie’s Piano Lesson” (1967) 95 seconds.
https://www.youtube.com/watch?v=QpxJjlUy8ms