Former Charter Tech here as of a few months ago
You are NOT liable.
The problem of you still being "live" is at the fault of the tech or auditor who WAS routed to disco you at the pole, but instead didn't and just noted their PDA as completed.
Either the tech was too lazy, or the pole location is kinda tricky to take out the ladder or climb the pegs.
I've done internet service only installs at locations that were live at the pole, but I added the necessary traps in order to cover my ass. When i'd get back into the residence the customer would laugh and say "damn man, i've been getting free TV from you guys for about 4 years!"
It's not Your fault, it's the companies and their tech/audit team
Enjoy
