Some time ago i posted about a couple of weird things indicating that the location of Green Thumb wasn't New York, but LA. If you want to take a look:
http://www.whoisredjohn.com/See-a-theory-Red-John/16938
Now in Golden Hammer It's happening again.
There are clear indicators that the location is LA not Houston.
The very first scene includes the sign of Tesoro del Valle and the Streetsign Avenue 23. These two eviromental markers allow us pinpoints the scene of the car crash on the bridge where Humoldt street crosses the Golden State Freeway:
https://www.google.com/maps/preview#!data=!1m8!1m3!1d3!2d-118.219694!3d34.078776!2m2!1f180!2f90!4f75....
The second thing manifesting the LA location is the Grand Park, the pink park benches and the water fountain the suspect tries to flee through are both signature landmarks of LA Grand Park:
http://redlinegrouptravel.com/?page_id=396
Funny fact Grand Park is only a 14 min walk away from the Pico House, which was used as the outside set for the CBI Headquaters.