Outdoor camera siren continues once alarm is turned off

Background:

I mistakenly triggered a false alarm by closing a window when the alarm was on.  Evidently instead of the motion sensor detecting "closed" (which shouldn't trigger alarm) it instead saw "closed/open/closed" which triggered the alarm.  This is a separate issue which I need to resolve.  Most likely by adjusting the positioning of the sensor components.

Question:

Once I turned the alarm off, the base unit siren stopped but several of the outdoor cameras continued to emit the siren sound for several minutes.  I was just on one side of the house so I don't know if all the cameras sirens were active.  It being 5am I was most concerned with stopping the noise.  I could not find a way to do this via app etc., so I had no choice but to wait it out.  Over several minutes the siren noise diminished an eventually stopped altogether.  It was similar to a capacitor being depleted of electricity.

Has anyone else encountered this situation and if so did they discover a way to remedy it?

Thanks in advance!