Lynn gives Ashley a toy car while the girls sit in the trolley. After Lynn stands up to leave, a portion of the boom microphone handle can be seen coming into frame at the top right portion of the screen.
In one scene, it shows zombies climbing straight up the bridge pilings of the Golden Gate bridge. Not only are the zombies completely dry but they climb the bridge like spiders yet others in the same movie can't climb a 6 foot cyclone fence.