unless the parking lot carry marking - Private property rights of admission reserved, using public space for parking and paying for IT to somebody for doing nothing but doing extortion .. ! .. thats' seizure of your basic right as citizen of Pakistan as per 1973 constitution.
property stolen from a parked vehicle privately insured at public place require a police report to claim. a vehicle stolen from paid parking is responsibility of parking contractor he has to ensure checking of every car & slip / card issued with regn number at time of entry and exit. any items inside the vehicle unless declared at time of entry with credentials are not in the ambit of parking lot theft.
we managed jinnah terminal parking lot for 3 years during 90's when NS was PM so I know the technical loop holes in system to stay safe or face a legal battle.