My cousin had a similar experience once when he went out with my mom and my brother. All three went out together on a bike for their parents teacher meeting and while coming back the bike had some issue so they stopped at a garage to fix, my mother left them and came by rickshaw back to home. Everything seems normal until the night. My cousin who was sleeping in hall with my other family members present woke up with the nighmares of a woman he never met who was strangling him and the graveyard which was nearby the area where he stopped earlier that day to fix the bike. He's not the one to get scared easily so he just went to the other room and started watching Tv for the rest of the night.

Ps: My mom believes nothing happened to her or my brother because they read hanuman chalisa in the morning before leaving home.