I don't think there's anything wrong with using 'shock tactics' [=actions, images, stories, etc., that surprise and upset people] to discourage people from driving while drunk.
We 'were shocked into' silence by what we saw. [=we were so surprised and upset by what we saw that we could not say anything]
He got the 'shock of his life' [=he was very unpleasantly surprised] when he saw his own name on the list.
(..) Williams spa. Stan Tobias wants a power pumper water pistol. Must be another dirk Lawson. Dave keckler wants some Nike shocks. Okay, uh, well, obviously we have A new development in the story, uh, A confirmation that Santa must have been sighted Because we have his book right (..)2003 Elf