It was messed up. That's what you didn't need to hear, because you already knew it. Just look at the Padres' reactions. Scott led them to believe that the ball was dead, and then he signaled that the ball was live. As an umpire, you're pretty much never supposed to do that. Like at all.
— Dale Scott And The Incorrect Mechanic - Baseball Nation Fabulous write-up and echoes my thoughts nearly 100%.