Who Tripped The Alarm At 333 Market St SF Monday Night January 29th 2018?

Who Tripped The Alarm At 333 Market St SF Monday Night January 29th 2018? - Video

Who Tripped The Alarm At 333 Market St Monday Night January 29th 2018? On Monday Night, January 29th 2018, the second through fourth floors of the building called 333 Market were illuminated by blinking interior lights - someone tripped the alarm. No fire trucks or police cars came by, but the lights kept flickering. In fact, they were doing so already, when I rounded the corner to Market Street from Fremont / Front Street in San Francisco's Financial District. But why?
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https://youtu.be/1iB6cRznfxE