I mean realistically it is just not intended game play mechanics.
Civilians cannot get inside via a natural means like a door or gate.
Civilians cannot land a helicopter inside without being shot down from AA.
They would have to plant a blasting charge which the majority of civilians likely won't have on them.
Civilians could use a van to jump over but would have no way of getting out or freeing the player in restraints.
From my understanding no one involved on the APD was banned for this and @ Zeuse said- he does intend on fixing this issue.
Also for what it is worth- at least one SAPD admin has condemned this as an unintended and broken game-play mechanic and agreed it needed fixed.
No foul on either side since it was generally unprecedented but just something that needs to be fixed.