Thanks for those memories BDiH! When I found a snapshot of this place on Flickr last February, at this post
HERE, the person (Vicky Valentine) whose photo it was said:
"Coffee Dan's, my hangout before high school. 1966-68."
She indicated she and her friend's referred to it as "C.D.'s."
Since you used to frequent the place, do you remember if the waitresses had any particular "Coffee Dan's" uniforms they wore? Was there any particular color scheme for these restaurants?
Lee Drugs, that you mentioned, is now a souvenir store called Memories of Hollywood. The Coffee Dan's location is now a McDonald's.
Thank you for verifying the location!