She may have saw what she saw, but she interpreted it in a different way then another may have interpreted it.
Sometimes I walk behind my husband, coz he walks faster then me, He is walking carrying one child, while I am not prepared to pick up my kids and carry them so would rather wait for them to walk slow.
I wouldn't turn around if a car beeped. However if I saw someone looking lost I will and I have approached them first to ask them if they are ok, where they are going etc.
I am born here, and speak English, have qualifications etc,
and yes I wear abayah, not niqab though.