Around the 18:30 mark while the carjackers are driving away you can see the shooter's hood going up and down between shots.
At the 24:19 mark, Cortez is seen talking to Alonso on the phone, but her iPhone lights up with an incoming call during the call indicating that she wasn't on an actual call, oops.
In the first act, Mumford is showing Hondo and Street a computer map tracking five recently-stolen cars. The dialog box next to each car's location shows their GPS location. However, these locations are nowhere near Los Angeles. Two are in the middle of Lake Michigan, two are in the Pacific Ocean hundreds of miles west of San Francisco, and one is in Hudson Bay, Canada.