On Sunday, around 12:30 A.M., a couple got into an argument at a McDonald's in Jacksonville Florida. . . because the man wouldn't buy his girlfriend a McFlurry.  It escalated, she ran outside, threw gasoline on his car, and set it on FIRE.  Then they both took off running.  Turns out the license plate didn't match the car . . . so now police are trying to sort everything out and track them down.