Lets see... article says "There were two men lying in the road. One was handcuffed and clad only in boxer shorts and a T-shirt in the snow." If there were two half naked men standing along the road, I would likely drive past that, even speed up... But this says they were lying by the road which is an indication of distress. 

You would be proud of your daughters to just swerve past men lying in the road, when something was obviously wrong with them? There are ways to help others in need without putting yourself in danger. Simply slowing down and asking if they were okay would be enough, and then following up with a phone call to the police based on their response... now that's something you could be proud of your daughters for. Adding as an afterthought the strange site they saw last night and drove right past -- not so much.