They firmly asked me not to do so and kindly asked me to stop using my plugin.
I complied with the first request. For the second, not so much.
Anyway, the moral of the story is that the DMCA was written to GitHub. Your own local clone is no one’s business.
I understand if we're talking zero days and you have reasonable faith the company will attempt to fix, but I presume here we're talking more accessible heating control?