LTM - Peer cert verify error - What is the Server IP

So after some digging I do not think what I need is possible currently. My initial thought was to do this via an iRule so I was looking at properties that would allow me to look at the Server Side SSL certificate, since I'm doing a L3 Outbound SSLo. This lead me to look at the SSL properties https://clouddocs.f5.com/api/irules/SSL__cert.html but unfortunately documentation says it would error for server side context. This means I wouldn't be able to use the event https://clouddocs.f5.com/api/irules/SERVERSSL_SERVERCERT.html; not sure if I could use X509 instead of SSL::cert https://clouddocs.f5.com/api/irules/X509.html going to try this method soon.