Most of the parkings use to have one or more other places where leaving long term vehicles as space is limited.
I recommend everyone who is using parking at Malaga airport to ask: Is your vehicle insured all the time?, will the vehicle be moved or parked at any other place, if so, where?
If you do not want your vehicle moved, just let it know. Some vehicle owners request their vehicle to stay where they leave it and the parking owner has the responsability to accept or decline.
Once you are picking up your vehicle, before getting it out of the parking, revise it exhaustively. Their insurance will cover anything caused during the time your vehicle was parked.
Parking included insurance requires 24h personal and recordings cams at the place where the vehicles are parked. I think that if you choose correctly, there is no special problems using parkings at Malaga airport, but as with any other service, it is a good idea to ask about any question you may have before using it.