I actually am curious if they were able to volunteer the information to the government of their own volition, without a government subpoena first. I would think that could violate their own terms if done sloppily. Maybe different if an employee or maybe they had to invite the government to ask for them or something? In any case, the mechanism aside, the state would have asked anyway (say if he used another company's chatbot) so the fact that it's the "same company" is rather irrelevant. The evidence would have ended up in the state's hands one way or the other, and I would think a search warrant in this case would have been rather routine. Search warrants are infamously not a high bar to climb in most jurisdictions, as often the presiding judges tend to default to deferring to the state.