I just tested the model with (exif-stripped) images from Cork City, London, Ho Chi Minh City, Bangalore, and Chennai. It guessed 3/5 locations exactly, and was only off by 3kms for Cork and 10kms for Chennai (very good considering I used a slightly blurry nighttime photo).

So, even outside of California, it seems like we're not entirely safe if the robot apocalypse happens!

edit: it didn't get the Cork location exactly.