When encountering an aggressive driver, you should:

If another driver is threatening you or intentionally driving dangerously around you, remain calm and try to put as much distance between the two of you as possible. Slow down and let them pass. Do not make eye contact and do not make obscene gestures.

• Avoid eye contact, slow down, and let them pass.
• Cut them off to slow them down.
• Retaliate by tailgating them.
• Make sure they know you disapprove of their behavior.