I'm not sure that he's legally able to do that at this time. Perhaps federal force might be used if congress passes a strong bill.
The law doesn't seem to be stopping Greer. Frankly, I am tired of hearing this excuse for lack of backbone. Jeb Bush is in charge of the state police, the state's attorney general. He is the head law officer. He could very easily write an executive order protecting Terri's right to life and send the state militia to her bedside to prevent the removal of the feeding tube. He has just as much power, if not more, than the judge in this case. But he, like his spineless brother in the White House, refuses to do anything. Shame!