I know that it has been mentioned before and I thought to offer my thoughts. Since I don't know the facts of the case, I couldn't tell you if it was right or wrong for the guy to move the lady from the car. As Qliveur said, if the car were on fire or something like that then the right thing to do would be to pull the person away otherwise that would open a can of worms that would be unavoidable.
If the person wasn't in any emminent danger, then the best thing to do would be to call emergency services and wait for rescue. I have heard of the phrase "leave it to the professionals" and in the case of emergencies like that , it would be prudent to obey.
I have mixed feelings regarding suing since I think a lot of it is ridiculous nowadays. I will concede that there are legitimate claims like negligence which could lead to criminal charges but suing for emotional distress to me is nothing more than a get rich quick scheme. Yeah a person could get emotional distress, even I could but I don't go sue happy. It's funny how here in the states we have so many privileges like the right to sue yet we prefer to abuse them with ridiculous claims that more often work. Heck it makes the "Twinkie defense" the lesser of two evils.