Discription of Events: On Rt 95 he was driving 85-90. I was driving 73. I merged to the middle lane. He came up behind me very quickly and was mad I was not going faster. He switched lanes and flipped me off, then went in front of me. He slowed and continuously sprayed he wipe fluid as to impair my ability to see. When I put my wipers on to clear the window after he let go of spraying he then would spray again for at least a 2 minute span each time. I merged left to get off the highway. He then followed next to me flipping me off till I took the exit and was out of his sight. He looked to be 55-65 yrs old with white hair