And how did they avoided the reckless spanish Guardia Civil? They are thirsty for anyone's money, and they won't be stopped by this "self-driving" crap. MULTA!
When the highway patrol cars came past the Volvos drove underneath the trailers of the big rigs and another rig overtook the first and hid them from view.
Just press the smokey-and-the-bandit button on the self drive console.