My Insight Got Rear Ended-CEL Light On!

Driving home from work the night before Thanksgiving I was waiting at a stop light when a little old lady in a Chrysler that's way too big for her rear ended me. I estimated her speed to be about 20 mph. I got out and inspected my car and it appeared to be okay. Just to be on the safe side I got the insurance information from the other driver as well as her license plate number before starting back on my way.

Within a block of leaving the scene of the collision I smelled a strong odor of raw gasoline and about a mile later my CEL light came on. I got the car home and looked for a fuel leak but found nothing wrong. Fortunately the car is having the catalytic converter replaced under warranty and was already scheduled to go to the dealer early next week for that work so I'll have it checked out for component damage as well.

I welcome your opinions and thoughts as to whether some running components of the car might have been damaged in this collision.

Thanks!