I suggest walking out of the parking garage, before giving it a look over. It adds a lot more depth to the game that many people miss, because they are too cautious haha!
To name a few - killing a Banshee in Fox Park (maybe), Hotwiring an SUV, Mowing down Zombies in it, Finding Jacob in the Elevator, eating a cat at the Boat House, doubling your score on every page that doesn't kill Jacob, and more!
Also, I wonder if anyone ever bothers to cross the river to the Cemetery, so they can go for a hearse ride...