It was dark when this occurred. Maybe she has vision issues?
I read that later.
It’s possible.
I dated a boy once whose night vision was almost non-existent.
A couple times he persuaded his folks to let him drive me home and I was terrified.
She should know if her night vision is bad enough that she should be driving, OR if she saw the blinking lights, which are hard to miss, she should have slowed down until she was sure it was OK to proceed.
What else do flashing lights mean except some sort of emergency or school bus? She should have known that.