The escape doesn't actually take much. Maybe 4 minutes. I will imply most of the outside once they leave the station. The cops listen in on the radios, to hear the progress of the escape. I don't need to show the cells. Just thought it would be handy to lock the cops inside. There is one office building I probably could use for free or very cheap, but it has cubicles but you never see precincts with cubicles.