In a similar vein, I cycled to the hospital to find out I had massive PEs. Never owned up to the nurses and the bike was locked up outside for 10 days.Never. I did ride +/-5 miles to a railway station following a heart attack. Caught the train home. I reckon that's a self-supported rescue. Only time I've had to abandon a ride in my life.
I simply don't understand all this rescue stuff.
But to keep on track, never really had to be rescued.