75 through Georgia, you've heard of Cafe Erotica. That's because the restaurant and nude dance club near the center of the state used brightly-colored billboards to let drivers know what awaited them just down the highway. Judging from Cafe Erotica's business, many drivers were grateful for the information. \n It was all very embarrassing to members of the Georgia legislature. They thought the billboard advertising could be misleading and hurt property values near the billboard. In addition, they said such billboard signs could "divert the attention of drivers and thus cause traffic hazards." \n To protect the people of the state, the legislature enacted a law that prohibited highway billboards from advertising nude clubs. The Cafe Erotica and Sunshine Outdoors, Inc., the billboard company, sued to challenge the law. This month, the Georgia Supreme Court ruled in their favor. \n The high court said the law denied the Peach County nude club its right to freedom of speech. Justice Hugh Thompson, writing for a unanimous court, said the law "impedes the free flow of information and far exceeds the state's legitimate interest." \n The ruling lets any and all adult entertainment businesses advertise on highway billboards. "My clients are happy with the result," Thomas E. Maddox Jr., Cafe Erotica's lawyer, told a reporter.