It's best to park on the side of the road, facing West. Be sure to park at the trialhead or slight west of it, don't park East of it, otherwise your car may be towed or crushed. Walk up the trial, tradional Ammo box, with lots of good things inside.
Way down below you can see what is called a TER, stands for Truck Escape Ramp. The ramps were designed to slow trucks down after losing their brakes. It was designed to slow a truck up to 90,000 lbs. going as fast as 90 mph. It's reported, a 170 of these are located in the United States and have saved many lives.