Regardless of the seller's knowledge, however, he could be liable if he misrepresented the condition of the car. For example, if he told you it was in excellent condition, or that there are no mechanical problems, he could be violating the Texas Deceptive Trade Practices Act. The Texas Young Lawyers have prepared a free booklet discussing your rights under the Deceptive Trade Practices Act. I bought an autographed baseball from a local shop. Now I think that it is not genuine.
Any breach of warranty is actionable under the Deceptive Trade Practices Act.
A person who acts knowingly can be liable for three times your damages. I suggest you speak with the store and explain your concern. Hopefully they will either assure you of the ball s authenticity, or replace it. If you cannot resolve the matter, you may want to consider small claims court.