Discription of Events: After merging onto the left lane on the florida turnpike with traffic, a black toyota camry honks at my vehicle from a distance of 10 feet. The driver begins to get very close to my vehicle and wants to go around but cannot. He eventually does by recklessly switching in and out of lanes and gets in front of my vehicle to slam his brakes going 60mph. I held my composure and noticed the male driver had his window down, yelling and trying to throw a yellow round object at my vehicle. I switched lanes and avoided eye contact. I began to record him while avoiding to directly look at him and focus on the road as my exit was approaching. He was very hostile and threatened me through his vehicle. Police involvement will be the next step if the hostile driver attempts to locate my home or vehicle.