"Once people saw that, 'wow, this guy is actually somehow going ... I need to disavow him on my car somehow,'" Hiller said.

Will the same standard apply if someone else applies the sticker? Would it be different if the suspect had simply placed a note, advertisement, or photo on the car ... just a guy riding around ...

The owner of a popular online shop explains the viral success behind his "I Bought This Before We Knew Elon Was Crazy" bumper ...