When that young 5 year old me was alive in 1966 there were FIVE Drive-In Theaters within FIVE miles of my house. There was:

Blue Dell Drive-In (shown in the comic). Open from 1949-1984

Super 30 Drive-In. Open from 1947-1970

Maple Drive-In. Open from 1949-1986

Greater Pittsburgh Drive-In. Open from 1954-1997

Rainbow Gardens Drive-In. Open from 1947-1968