When I looked at the screenshots, I wasn't expecting a point&click adventure. Nice! The premise (working zombie) and the music made the game seem a bit like "Zombie Society: Dead Detective" on. Not a bad thing. (Personally I would prefer another song though. Have heard this one a bit too often.)
A few things that stood out to me: The transition from the office to the cemetery car park felt a bit abrupt. But maybe I just missed a line of dialogue/text. The exit of the cemetery could use a bigger hotspot. Had to search for it a bit. And the walking speed is really slow.
It's quite short, but an interesting introduction to this world. The dialogue is great. I especially liked the realisation that you could have used your smartphone. ^^
A very entertaining teaser. Looking forward to more :)