It was probably someone in the sheriff's dept who tipped off the hospice about Jeb's plan to send in the rescue squad.
I have a feeling that someone in that camp may be getting a bellyful of Herr Schiavo. There have been reports of police officers tearing up while on their post close to Terri's room.
With any luck, one of those "disgruntled" officers might decide to come clean about what he knows, and blow the lid right off that Sheriff's department. We can hope ....