Wouldn't your reaction have been to immediately stop and run back into the house/car/business away where the camera couldn't see you when you saw it was suddenly focusing and filming you? I think that is what most people's reaction would be.

Update: New info - Roman Balmakov from the Epoch Times said this: "According to a US General (Van Herck pictured), the balloon had "... a super, super high definition surveillance camera and had sensors onboard with the ability to intercept communication signals in the area."

So maybe the balloon messed with the guy's camera. I don't know.

Source: https://youtu.be/r0Nn81wMeVU

Wouldn't your reaction have been to immediately stop and run back into the house/car/business away where the camera couldn't see you when you saw it was suddenly focusing and filming you? I think that is what most people's reaction would be.