Sorry to hear about your incident, Smashface.
"I said that the bike appeared to be fine but the leg warmer (all I had noticed at that point) was £30 or so but she gave me a sob story about not having any money."
..which is the point that you should have asked for her insurance details. This would have had numerous benefits - I suspect money may then have been found or obtained if this was what you want, also gives you more time to check yourself and the bike over, also a chance to note her reg number. Contemporaneous photos with a phone or whatever of clothing, bike, car could help if liability is later denied (not unusual).
At the end of the day, if she knocked you into the opposite carriageway, you could easily have been killed or seriously injured either in the fall or from oncoming traffic. You had nothing to apologise for, she was in the wrong, you certainly shouldn't be out of pocket or worrying about potential damage to your bike.
Glad to see you've had a response from the police, hopefully they can elicit her insurance details from her and pass them on.