Man driving this car cut me off on 32 S, slammed on his brakes slowing rapidly from 70 to 30 while flinging obscenities at me and my 5 year old son. He then proceeded to let me pass then started following me. Police called after he followed me off an exit ramp. Man is mid-40s. White. Blonde/red hair. Medium build. Had long haired blonde in passenger seat. Extremely aggressive and dangerous.