They don't need to send a compliance auditor out to your house if they can block the key.
Even if you don’t fear any legal consequences I guess you might still care about denial of service.
Can't fear the EULA if it's not even read <insert head tapping gif>
I mean that's it. Is it even something based in reality to expect a simple person to scroll through unknown and almost endless legalese and then expect to go to court because I broke the EULA and the judge would look at my life and tell me that I broke clause 44.24? It's never going to happen.
They’re unlike to waste any resources on one unlicensed PC. But they might just pull a Google and disable everything and not answer the phone.