Waitresses may not carry drinks into a restaurant or bar.

IC 7.1-5-8-6
Taking liquor into restaurants prohibited

Sec. 6. Taking Liquor Into Restaurant Prohibited. It is a Class C
misdemeanor for a person to knowingly carry liquor into a restaurant or place
of public entertainment for the purpose of consuming it, displaying it, or
selling, furnishing, or giving it away to another person on the premises, or
for the purpose of having it served to himself or another person, then and
there. It is a Class C misdemeanor to knowingly consume liquor brought into a
public establishment in violation of this section.

(Formerly: Acts 1973, P.L.55, SEC.1.) As amended by Acts 1978, P.L.2, SEC.714.