It is becoming very dangerous down there in the concrete jungle. Be extremely cautious when going outside. Confrontation is for trained people. Just call 911.
The one thing I hate about being an old man is, the only thing that still works as well as it used to is my big mouth! It still wants to go off at inopportune times like an errant car alarm in a busy parking lot. You are right of course, the day for handling things between you and someone who's annoying you are long past. They might possibly have on their person MORE than enough gadgets to completely disassemble you and just put the pieces down the drain.