This is my destination
Option to pick the spot you are now and save it as "Work", "home" or a Favorite. I work in a BIG building - the street address is more than a quarter mile (and on another road) from where I park. I'd love to be able to park, then have that spot be "work". As it is now, I never actually reach any of my regular destinations because of this, which causes false "jams" if I forget to turn Waze off when I get there.
When you park your car at work just hold your finger on the screen and a pop-up will be displayed with an "i" for information. Click it and you will be presented with the ability to do exactly what you asked about
Alexander Chemerys commented
You can do this when marking a spot as a favorite. When you name that spot, call it "work".