I really like the atmosphere starting from the menu.
Some notes:
1. When you in game and want to change settings you have to quit. I would make options available from the game as well. Things like changing SFX and other sounds volumes. As other devs mentioned before - you can add to existing menu - would be nice :)
2. I think the option of not taking the envelop in the beginning can be removed and you can pick it up automatically.
3. Would be fun if the interactions will not be the same each time, for example if you decide to keep the envelop with an option to pick it up maybe make dialogue different, same with coffee - maybe at some point he could say "ok, ok one more cup but that's it" or something like that :) Also, when reaching WC scene you can add a link to coffee like "I knew that coffee was too much" and make some small scene where the lights go off and you hear the main character whistling or something. Small things add up :)
4. The ambience music could have more variety.
5. Was not clear for me personally that this guy will call police on me :D I think would be funny if say instead of "I don't need lawnmower" earlier in the game on a third try the main character will be like "ok, what if..." and when this guy catches you then you can interact and say "oh I am just working here" and it won't be a game over. I think small things like that would give some variety in the gameplay.
6. The game over music has no loop btw. Not sure if that's intended, or you want to make it in a loop :)
7. Gameplay-wise the controls feel intuitive and clear.