Tailgating isn't just illegal, it's also extremely dangerous. I think the in best case, a self-driving car would record the number plate of the car that cut you off, and you could then pass that information on to the police.
edit: I didn't want this to come across as an attack, I'm not a perfect driver myself, in fact I'm still on my learner licence :) . I feel the fact you have to constantly break the law because other drivers are also breaking the law to be a problem in itself, without even bringing the autonomous car into the equation.
edit: I didn't want this to come across as an attack, I'm not a perfect driver myself, in fact I'm still on my learner licence :) . I feel the fact you have to constantly break the law because other drivers are also breaking the law to be a problem in itself, without even bringing the autonomous car into the equation.