Kudos to DaG for pointing out Anagnina which is great when you exit Rome South intersection and want to resume from A24/A1 intersection.

On the same path I have found Torre Spaccata station which looks like to be served both by train (from Termini line) and Metro C.

Following is detour map. For being a detour, driver can easily resume the journey without driving back from where he/she came from