Hi Steve,
I feel your pain as well. Another option would be to provide a transcript of the discussions assuming they are discernable from the camera mic sources.
Also, since we are sharing war-stories; I have a University client that I provide recording, media backups and live streaming services. I was hired by one of their clients to JUST do a live stream. I asked the client three times (through email) if they needed me to record the events as well and they said no.
The day of the show, I was watching the venue engineer shade cameras and before the first of four events that day I asked if he was told to record them – he said no. That’s when I figured it would be good to record anyway to cover my clients as-. Sure enough, about three weeks later he called me and asked where the recordings were and I reminded him that it was the venues deal to do that. He did not say a word before I told him I did a confidence recording just in case– he learned that day about CYA!