I didn't feel it from Margaret's, the police, or Simeon's persepective. I felt that I was involved though - like I had a front row seat for the action. On the outside but still involved.
That was the intended perspective, achieved by switching back and forth without a personal attachment. And that's what works well in action scenes ... the reader's mind automatically makes a choice of perspective if not directed by the writer.
I thought it was tight and dramatic; this Sim is a guy worth watching.
What is clever here is that this episode could be used as an opening paragraph or it could be inserted anywhere in the work; even as an ending, whetting our appetites for more.