Random Service - no heads up

I am genuinely wondering why Comcast showed up and started working on our lines outside our house, disconnecting the internet (while I was working), and never informed us of them coming. When I had someone call me from their service team the response I got was someone called about the wires in the area so they were checking them but not to worry because they wouldn't come inside. 
I'm not so much upset that they're working on stuff but during the pandemic when it's normal for people to be working at home at 4:00 you'd think they'd give a heads up or something. I had to figure out what was going on after I heard voices coming from outside the room I was working in. I really wasn't in need of that!