A car was driving down the street when all of a sudden it started swerving.  The car was going back and forth till someone with a cell phone called the police.  A police officer pulled the car over.  A blonde rolls down the window and says, " Officer, I'm so glad you are here.  I saw a tree in the road, then I saw another.  So I  had to swerve to keep from hitting it!"  The officer looks at her, then says, "Ma'am, that's your air freshener."