Ignoring that this wont update your status to "In a coffee shop" for argument sake lets pretend it does.

If your work allows you to work from a coffee shop and your status reflects that then whats the issue? If you aren't allowed then why are you working from a coffee shop. This doesnt make sense as an argument. Plenty of people have in their contract strict policy for work from home. My job would not allow work to be done outside office, home or specific sites. We have people who are allowed to work in coffee shops and airports and they get laptops with privacy screens and are told to not access sensitive information in those locations.