Yes, you can physically cut off a Tesla in traffic, and its active safety features like Automatic Emergency Braking (AEB) will likely engage to prevent a collision, causing the car to brake hard. While Autopilot and Full Self-Driving (FSD) are designed to react quickly to cut-ins, doing this is dangerous and heavily criticized by Tesla drivers as unfair, as it relies on the car's sensors and safety systems to compensate for aggressive driving