Not necessarily. I've had 2 experiences when I thought someone was following me. The first time, they were and I should of called 911. It was screwed up and to this day I wish I had trusted my gut to call 911 instead of allowing my partner to attempt losing the psycho because I've always wondered what this person's intentions were once they got to us, whether it was just to scare the heck out of us or something worse.
The 2nd time I noticed a car followed every single turn I made for miles and miles, even when I turned down my own street but I still worried that I was just being silly and that time it turned out that the car was visiting my neighbors house but it was quite odd to see a car follow you through so many turns on the main road and then a few turns on the side street and then actually turn down the street you live on, I felt unsure if it was just coincidence or if I was actually being followed. I told myself that if they were still behind me when I was at my house I'd keep going instead of turning into my driveway and call my mom or 911 but then they turned into the driveway of my neighbors and I felt pretty silly for being so freaked out.
My point is that some people, even if they have a bad feeling, can question themselves into thinking they are just overreacting. Maybe she saw a car following her but wasn't positive so she turned just to see if he would turn too and he didnt, so she figured it was ok when really he didn't follow because he knew that wasn't her apartment complex plex or saw the gate attendant and kept going to IGA knowing she'd show up eventually..meanwhile him not turning in made her feel it was just her overreacting like I felt