A driver loses brakes on a long downgrade and sees no immediate escape ramp, but a side road ahead turns uphill. What should the driver do?

1. Take the least hazardous escape route as soon as it is clear the brakes do not work
2. Stay on the downgrade until the vehicle slows by itself
3. Wait to see whether the brakes cool off at the bottom
4. Shift to neutral so the bus coasts more smoothly