I think it boils down to not harming or infringing on another persons liberty. If you are in a public park and you are 200 feet from another then it should be fine. If you are in the same park and set down between two people on a bench lighting up could be a problem. Now if you set on the south end of the bench and the wind was blowing to the south what is the problem? Bottom line your liberty to smoke can't violate another persons liberty to breath smokeless air.
I can't imagine Ron wanting another law on the books.... Liberty has been defined... now enforce it!