One again, pick-n-pull. Just look for one that was not hit in front end. Might need new fan/clutch if the rad pushed on it very hard. Just pull rad back and spin fan to see if it wobbles or such.
Oh and wehter we admit it or not, most of us follow too close at one time or another. I usually keep a big distance but I have been too close (for the size/weight of truck I was driving) and tagged someone else. Doesnt help when people dive in your lane in front of you and eat up your space.