Yes, it sounds like the Clean Indoor Air Act is a violation of that businesses private property rights.
As far as I know they are a private property open to the public not public property. I have no problem with the government governing their own property.
Obviously you and people like you who create these Act's are the problem...you lack the self control and intelligence to make decisions for yourself so you lobby for the government to do it for you at the expense of everyone's free will and freedom.
If you were correct then the law would have been challenged and overturned long ago. I was in the pool room business when it was illegal in our state for a minor under 21 to even come in a pool room.
We took it all the way to the state supreme court and won. The law was thrown out lock-stock and barrel.
If you are right then that is what they should do with their smoking law.
What we say here has no weight just personal opinions and much, including mine, really very not well informed.