With COVID issues most airports want travelers only, even landside.
In LAS VEGAS pre-check they now only scan your ID (not bp), I don't know what info the agent sees in his terminal.
In any event if it isn't a long walk see what happens; if they let you through they will scribble on your bp, so print a new one for tomorrow.
I got to watch the TSA screen as my wife passed through... it displays the flight number and destination. I would guess that if you cancel beforehand, the flight wouldn't display.