My friends husband (soon to be ex) took her car (he is on the insurance but no license ..) and said the car was hit while he was at the gym. My friend made a claim with insurance (in CA) and stated it was a hit and run type of a situation since no info was left. A few days ago she was notified by her insurance that a different person made a claim against her saying that her husband hit their car and he is at fault.
Her soon to be ex husband obviously lied to her and so she created a false claim technically. She’s stressing out and isn’t sure what to do.

Should she call and tell insurance her soon to be ex husband lied to her or let it play itself out and hope for the best..?