I do not believe he ran around nude. He had neighbors not far away from his cabin. It gets too cold for that there anyway.

Ted was exposed to tech and humans for quite some time. After the drug and psychological experiments on him at Harvard it is not surprising he would want to get away from that and also not at all surprising that his responses and reactions would be a bit extreme. I am not justifying it, rather I think it's just expected. I could envision the head of the mkultra project closing the ticket [Not a bug][Working as designed]