Ugh... I hate the "you'll shit brix." Despite all the posters I've read that had this saying, I've never done that. If I did, it'd be quite painful. My (your results may vary, fuckers) rectum is not meant to accommodate giant rectangles.
And it's not like this one is hidden, it's on the fucking license plate. It's also probably Photoshopped. As liberal as Cali is, I doubt this would slide past the DMV.