Okay, peak Statist mentality here. Gubment should protect everyone! Let's buckle up and unpack this one.
Government's (If such a thing needs to exist) job is not save me from myself.
If one does not want to work in a smoke filled environment, don't work in one. Louisiana has tons and tons of bars and restaurants, and some of them would be smoke free regardless of any laws being passed.
Government is violence, and what happens when a bar/restaurant owner refuses to enforce mandatory no-smoking? What happens when a customer refuses to comply?
Ultimately, the best way to deal with this problem is let the free market work. If a bar or restaurant allows smoking and it negatively impacts their business, they will change or close down. The wait staff, cooks, hosts, managers etc, don't want to work in a business that allows smoking, they won't even if the job paid more.
Second hand smoke is also a non-problem. http://www.slate.com/articles/health_and_science/medical_examiner/2017/02/secondhand_smoke_isn_t_as_bad_as_we_thought.html