Legal Question in Disability Law in New Jersey

Yes you are free to fight any ticket you choose, winning your case is another story. If you did not see a sign, that is what you tell the prosecutor, maybe take a picture of the area where you were parked. Make sure you read the ticket carefully to know exactly what the officer is claiming was prohibited. A parking ticket is only a fine (Usually) so there should be nothing to lose in challenging it, maybe you can work it out, good luck.