“The bottom line for us is that tigers don’t belong in truck stops,” Mr. Liebman said. “I think it reflects a pretty commodified, objectifying view of animals that we don’t support — that they are objects of entertainment, that they are gimmicks to sell gasoline.”

In 2006, the state passed a law that put limits on “big exotic cat” possession, but allowed anyone who owned such a cat at the time to be grandfathered in. Mr. Sandlin, who had kept tigers here for nearly two decades, was granted a permit for Tony. But in a 2011 trial, lawyers for the animal defense fund showed that a parish law that was on the books in 2006 prohibited keeping exotic animals and argued that he should not have been exempted from the new law. The judge agreed and ordered Mr. Sandlin’s state permit revoked.

Mr. Sandlin, who still has a federal permit, has appealed the decision, and has also filed a separate lawsuit arguing that the state law itself is unconstitutional because it is applied unevenly and leaves too much discretion to enforcement officials.

Still, he has been looking for a retirement home for Tony. This search generated its own outcry when he said he was leaning toward a wildlife park in Oklahoma owned by a man who calls himself Joe Exotic, but whose real name is Joe Schreibvogel.

Mr. Schreibvogel’s park has attracted a good deal of controversy itself and is being investigated by federal officials for 23 tiger cub deaths. But Mr. Sandlin said he believed that it provided good care, and did not trust others to know what was good for Tony.

“He’s used to the noise from the Interstate and the trucks,” Mr. Sandlin said. “He’s used to people coming up here and looking at him.”