So as this has been pointed out multiple times, as indeed it was while the convention was still going on, why are you still 'hiding behind it'?

Here is the link to the full act:
http://www.leg.state.nv.us/nrs/NRS-202.html

And here is your section NRS 202.2491, para 6.

6. The smoking of tobacco is NOT prohibited in:
(a) Any room or area designated for smoking pursuant to paragraph (b) of subsection 2 or paragraph (b) of subsection 3.
(b) A licensed gaming establishment. A licensed gaming establishment may designate separate rooms or areas within the establishment which may or may not be used for smoking.

7(b) then says (b) “Licensed gaming establishment” has the meaning ascribed to it in NRS 463.0169.
which in turn defines it as "NRS 463.0169 “Licensed gaming establishment” defined. “Licensed gaming establishment” means any premises licensed pursuant to the provisions of this chapter wherein or whereon gaming is done."
In other word the ENTIRE premises (save, of course, where food is served)