I'm No Superman

As I was driving home last night at 2:30, I went down 795 which is very close to my house. I saw a couple of cars ahead of me that looked to be swerving and very likely drunk drivers. As I was nearing my turn I saw a semi with emergency blinkers on and it was hard to tell if it was moving slowly or broke down. As I got closer I saw it was stopped so I switched lanes. As I past it I was sure I saw a small car smashed into the back of the parked truck. It was difficult to see and the car had no lights on anymore. I didn't see anyone as I passed...my guess is that truck driver walked to a gas station to call and the person/people in the car were not able to get out. I slowed way down and made my turn 50 feet later and then stopped. I wasn't sure what to do. There was not another car anywhere to be seen. Should I get out and try to see if I can help the people in the car? Should I just call 911 and let people who know what they're doing get there? Or should I just be an incredible pussy and pretend I didn't see it and have someone else call. It was very dark afterall and what if I hadn't actually seen what I had seen. Well I at least ran into the house and called 911 to describe what I thought I had seen. The dispatcher asked me detailed questions so I am sure that no one else had called it in yet. I would have been difficult to see if you hadn't been looking right at it and driving slower (50 mph speed limit). The sirens, and ALOT of them, started coming 5-10 mins later. I walked down to the end of the road behind our house where I can look down 795 and I saw the entire 4 lanes closed off with more emergency vehicles that I had ever seen in one place. I didn't get any closer, they didn't need me getting in the way. I stayed up until 4 watching from a distance, I even saw Toledo Hospital's Lifelight helicopter circle over my street and land in a parking lot just off the road (Amy's church actually). It stayed for 20-30 minutes which I thought was probably not a good sign. From the brief look I got the car was smashed into the back of the truck and most of the front of the car was under the truck. And I'm pretty sure it was one of the cars ahead of me that were swerving. I actually stood there and prayed for the people in the car, even though I know it will do no good coming from me.
And I know I shouldn't feel like this, but I'm ashamed that I didn't stop my car and run to the accident. I know I know....I have no idea what I would have done and I called 911 and let the people know who can do something. And yes I could have put myself in danger while not accomplishing anything but calling like I did anyway. But I still can't get rid of this feeling. Clark Kent would have gone over and helped. Sorry...watching too much Smallville lately. I guess like the Scrubs theme song says "I'm no Superman". That's not an easy feeling to live with.