You raise your hand and give the signal to stop. The tanker and the bus slow to a halt and, as you bring your own vehicle to a standstill, you switch off the ignition and reach for your gun.
If you are using a Pistol, turn to 101.
If you are using a Machine Pistol, turn to 131.
If you are using a Shotgun, turn to 72.
If you are using a Rifle, turn to 233.