I think enabling the functionality would require too much back-office and vendor integration to make it a feasible lie. Too many people would know about it - and the risks from lying and saying ‘not enabled’ are too great.

If they had been enabled - and found out - the recommended lie would be “we are currently undertaking a small-scale trial of the technology to assess it’s effectveness. We will be report on the results early next year as part of a wider public consultation into it’s wider deployment”. (Why yes, I have worked in public sector comms).