Methods for liberating organic carbonaceous products from mineral matrices such as oil shale and the products liberated by the present methods inter alia, the invention in a preferred embodiment subjects oil shale to resonance disintegration including inter alia rapid pressure and directional changes to essentially instantaneously vary forces acting thereon. The system comprises a valet keyfob in wireless communication with the vehicle and configured to activate the predetermined set of vehicle features when enabled, and a first processor coupled to the vehicle and configured to enable the valet keyfob to activate the predetermined set of vehicle features. A detector is arranged for receiving the light from said second fibre for producing an output signal. The device also includes a feedback unit.