Here’s one secret that works in every commercial building with people working there:
GO AROUND THE BACK.
Look for a plastic table and plastic chairs.
That’s where they smoke. That’s where you can smoke.
I’ve been to buildings where SMOKING IS BANNED WITHIN 50′ OF THE BUILDING. Doesn’t matter. Go around the side and back. You’ll find a table and chairs WITHIN 50′ of the building… usually right next to the building under a canopy because if at least two workers smoke, they got a table and chairs set up for themselves.