It'll be interesting to hear of cops trying to enforce a smoking ban when the cops smoke themselves. Because if a cop who smokes wanted to give me a ticket for violating the ban, I'd try begging him to gimme a break since he smokes too. I know I'd give someone a break if I see him/her smoking. I wouldn't even tell the owner that one of your patrons has an UNLIT cig in his mouth!
(That's screwed up on a tavern owner getting a warning when the patron simply had an unlit cig in his mouth...he wasn't smoking!)
But it is funny to be having cops enforce a smoking ban when some of the cops smoke themselves.