It puts me in a tough spot, because on one hand I believe public space should be able to be recorded, but on the other hand this is pretty obnoxious behavior and pretty threatening in context. There are laws that cover this kind of stuff that are unrelated to filming, so police definitely could do something here. We see it as a video on the internet and know the intent but in the moment, it's some guy filming you and your family and not explaining why, I would totally get why people are furious.