Reductio ad absurdum, why not make all communication illegal without the explicit written consent of the recipient? Then you'll never have to be bothered by anyone ever again.
No one should presume they have an IRQ line to your brain and attention. They don't get to interrupt you with bullshit you couldn't care less about.
My phone blaring at me at any time w/o warning and with no way to control this behavior seems quite a bit more intrusive to me than your examples.