I had a remarkably similar experience this year, only I would say it was an even more disruptive event. I don't want to labor the experience, but can provide details if needed. Somehow, I think the message they were sending got a bit garbled at the other end. The message they were sending was probably one of respect for an officer who died in the line of duty. That, and respect. The message some of us received was more like "These are our streets, but most of the time, we let you use them.".