The footage captured by a hidden vehicle camera can be used as evidence in court if it was obtained legally and meets certain criteria. The admissibility of the footage will depend on factors such as the location and circumstances of the recording, whether it was obtained with the consent of the parties involved, and whether it violates any privacy laws. It is important to note that using a hidden vehicle camera to intentionally record private conversations or activities in a vehicle without the consent of those involved may be illegal and could result in criminal charges. It is always best to consult with a legal professional before using a hidden vehicle camera or relying on its footage as evidence in any legal proceeding.