Can we really trust it to honor your request to stop using the internet? After hearing them speak on this subject, I have my doubts it will honor your request so quickly and easily.
If it isn't connected to the network, it can't communicate.
Unless it is factory reset (and even then?) it presumably still has saved wifi credentials?
Wifi exists now lol, and if there are open wifi networks in the vicinity, it can use it.
What do you mean "the network"? Do you mean the wi-fi you told it to not connect to or something else? Because something else sounds like a secondary path. It's enumerating devices for a reason. How many of those devices are LG or an LG partner?