You can't. I work from home and Now has decided that I work at the vegetable shop nearest to my house (because I visit there often I guess), and it has assigned

You can't. I work from home and Now has decided that I work at the vegetable shop nearest to my house (because I visit there often I guess), and it has assigned it the location name "Work". You cannot delete this location. You can rename it, but that won't stop Now from suggesting that you drive there. If there was a bit more control it would be fantastic.