Capitol Records Tower Swap Meet

This one is probably a long shot, but did any of y’all ever go to the Capitol Records Swap Meet back in the 70s?
It took place one early Sunday each month (although by the late 70s it got push back to 10pm the Saturday before) in the parking lot of the Hollywood Capitol Records Tower. If it involved music, even peripherally, you could probably find it at the Swap Meet. Dr. Demento used to shop there regularly. I was in the USAF at the time and went on a regular basis with my then girlfriend (Sally Van Op Dorp, whatever happen to you?) looking for Beatles bootlegs, comedy albums and tapes and other curiosities. It was an experience I will never forget, but I am wondering if any of you have had this same experience?

I thought this thread might die on the vine, except…I just got a message from Sally Van Opdorp herself! We haven’t contacted each other since I left the U.S.A.F. back in 1980. We still have a lot of the same interests.
How about that!