Ok my wife called me about 2 hours ago and said that she drove the car through a puddle and it died. I knew right away what happened. She said all she sall was smoke come from the exhaust and then it died. She tried to start it but it wouldn't even turn over. I jumped in my other ride and went to save her and when I got there the car started for me and ran very rough for a few seconds maybe like 10-15 seconds then it ran smooth and rine like nothing happend but it was smoking white smoke for ever I drove it home like 12 miles and it stopped smoking and it's running just like it always had and had plenty of power I don't hear any unusual noises from the engine. What should I do now I know I'm gonna change the oil for sure but what else should I do is it possible the engine could still be damaged????