I started playing D&D in Aurora Colorado in 1977-78. While my Mom was marginally concerned*, I was made fully aware of the Satanic Panic in 1982 or so because of a relative. We had just moved to Texas. (At the time, I had also discovered heavy metal.)
Funny thing, I was attending an all-boys Catholic private high school at the time, and the monks who ran it didn’t worry about it at all. In fact, I was permitted to start a roleplaying game club while I was there.
In fact, the only faculty member who gave me any guff about the game (and the music, too) was my art teacher. He was one of my faves, and I think the feeling was mutual (we’re still cordial to this day), but he became born again midway through the school year, gave away his tapes (which he used to play in class on a boom box), and started opening classes with a Bible quote.
* Mom didn’t actually do or say anything about either the music or the hobby, but did eventually tell me YEARS later of her worries.