Fisherman,
The airfield, or airport first have to declare whether the aircraft parking fees are being paid or not. At an airport in the UAE, there is a similar Tristar, fresh out of heavy check with positioning hours only, has been standing for far longer that this aircraft because the owner still pays the parking fees. The aircraft remains in good condition as well!
If this A6 registered owes money then normally the airport would need a court order to remove it. If and when they ever get one, only then can they consider hiring an aircraft salvage company to dispose of it.
Its value? The material values of the engine metals. say $30K tops depending current metal prices. Cost to scrap? a lot more than that, which the airport usually has to pay.