Yikes! Glad it wasn't worse.
Hope her insurance settles quickly on your bike. Don't be surprised if you're very sore tomorrow - and don't hesitate to see a chiropractor or PT if your pain persists, just don't sign anything with her insurance quite yet. Both my DH and I had about four days of pretty bad low back pain after we were rear-ended (and low back pain is not a normal thing for either of us).