Worst thing ever

I am 2 cats away from being labled as a "crazy cat lady". Last night at 6:30 PM on the way to work my worst nightmare came true. I ran over a cat. I was listening to Christmas music, full of joy due to my early Christmas present, with an overwhelming feeling of "It's going to be ok". Then out of nowhere, a tabby cat darts in front of me (having made it over 3 lanes of traffic and waiting in a boulevard) and I slam on breaks. I know I hit him, and looking in my rear-view mirror I see his body on the side of the road. I park my car in the turning lane (cause at this point I really could care less) and run into traffic (3 lanes) to get him. He's begining to poop, which tells me he's gone. I put him in the floorboard of my car.... I am crying hysterically- call my client who starts to almost cry too. I call my husband and he meets me outside. The cat is dead. I guess I ran over his back and killed him instantly.

I was a wreck, and I'm still a wreck. How can people hit an animal and drive away? Horrible.