Look, we don't even know whether these records are credible. If they are timekeeping records, they could easily just show "40 hours as scheduled" for Cindy (my company does this and nobody logs exceptions except those who do get overtime). Not being allowed to log overtime is, unfortunately, kind of common, even if it is a violation of the FLSA. But most employees don't challenge this. We have to hear what the Gentiva guy says before concluding.
However, if they have log in log out times from work systems, that would be very interesting.