Shouldn't the people who paid for this billboard be arrested?

In the wake of a court ruling that Pennsylvania citizens do not need photo identification to cast a ballot, state-sponsored billboards and ads are providing the misimpression such IDs are still required. A Spanish-language billboard highlighted by Bloomberg reads, “Si Quieres Votar MuĂ©strala,” meaning, “if you want to vote, show it,” and features a photo of a woman holding up her driver’s license:
Why isn't this sort of thing (a brazen distortion of important facts concerning the democratic process) considered a serious crime?