I would have stopped - I'll help anyone and if it puts me at risk, well, then it does. I had my car break down on the way home from work and the weather developed very quickly into a blizzard on my drive (in the evening). I was wearing a dress and nylons. I walked on a highway for miles toward a light(farmhouse). When I got there, I couldn't even speak - thankfully they knew me and were able to phone someone to come get me. Several cars drove by me - saw my car with the emergency lights flashing, saw me (female) walking along the highway - yet NOBODY stopped.
I recently gave an intoxicated man a ride - it was hovering around zero degrees. He could have had a weapon, I guess. I will always help people and refuse to live my life being afraid and I will always try to help.
Everyone has a right to make their own decisions - probably no right or wrong decision - but this is what I do.
Hope I don't sound like I'm preaching - I'm just passionate about helping.