Cops buying donuts at *parody name for Dunkin goes here* Donuts.
From what I saw in the trailer, the AI has been massively improved. If you look closely at the part with the Screamer rollercoaster and the blue car, you'll see the drive wave to the pedestrians in the background. Hopefully we'll truly get what was promised with San Andreas "every pedestrian has their own lives". Watching them shop, interact, work, etc, how amazing would that be..