No, Sal has never met Ruth. There is no reason why she should have this phrase in her brain other than it being a fun subversion of the original sentiment.  I knew it made little in-universe sense, but it was too difficult a warped connection to resist at the time.

Or.

OR.

Sal was secretly the guy driving The Truck, and she heard everything.  We know she was in Bloomington that night!  It all fits!