Why don't we get Polar Spring water or one of those bottled water companies to deliver an entire truckload of water to her room! Coordinate this with the volunteers to carry bottles and positive media coverage for a run on the hospice.
Once you reach the point of no further progress to get to Terri, open and dump the bottles on law enforcement while they pull you out.
While I agree that more civil disobediance is needed, that's asking for a nightstick to the jaw.
The way I see it, there are only so many cops on the premises.
If we could get several thousand of us, all "armed" with water, there's no physical way they could contain us all.
They'd have to gas the facility, and they can't do that because of all the sick people inside it.