Idea for those "catch the bad guy" tv shows

I just had a good idea for how the "good guys" could catch a bad guy in one of those CSI-type investigation shows. First the bad guy has to live in one of those states where it's illegal to text while driving. Then the good guys trick him to allow them to have access to his cell phone records to get out of a traffic ticket so they can see the incriminating evidence in his text history. Oh, this is so good that it probably has already been used.