It's incredible how inexpensive red bicycle blinkies are. I probably spent close to $70 dollars just on blinkies alone and will NOT bicycle at night without at least two of them on my small back back. Even with that, I end up feeling very insecure and often ride on the sidewalks at slow speeds instead of becoming road kill.
I suspect someone will honk the living day lights out of this woman and she'll either get a rear blinky or stop cycling completely at night.