The doctors say he'll be fine.
They won't let me visit him, but Ben's mom says the car broke Ben's left femur in two places, and sprained his right wrist when he hit the ground. He got a minor concussion from when he hit his head off the pavement, but the doctors say that he'll just need to be reminded of what year it is and who some people are. There shouldn't be any lasting damage, other than some scars. He can open his eyes and seems to know who I am when his mom asks him about me. It looks like he doesn't remember that we were actually dating.
Thank you for all the support. I'm sure that once Ben gets some of his memory back, he'll want to thank you all himself.