SWAT Standoff Surveillance Snafu

Good: A homeowner caught intruders entering her home on a security cam mobile app.

Great: Police respond in force to catch bad guys, surround the house.

Bad: The badguys don't come out, six-hour standoff ensues.

Worse: Badguys actually left when Cops first arrived, Homeowner was looking at a recording, not a live view from her camera.

Catch the news clip below:

I wonder how this sort of situation can be prevented?

So how long was the recording she was watching or did she keep watching the same clip over and over again?