It was really a brilliant strategy, one Kilgrave hadn't counted on. The longer she stayed in there the more impatient he became at his thralls inability to locate her.
Eventually the alarm was turned off from somewhere in the building, abruptly plunging the building into silence. And then-
"---Jessica?" the sound issued through the building's PA system. Not Kilgrave, but dear Patsy, sounding pained as she was abruptly cut off.