That parking is for the employees that work in the
various cargo buildings. They are posted as private
property-employees only. Miami police do patrol the roofs and will ask you to leave if they spot you
up there with out a valid reason...However..some very
nice photos have been taken from there...
You can figure it out.
There are several excellent areas to take pics from
along side the runways.
Cargo doesn't whine, moan, or complain