Missouri Revised Statutes Title XX. Alcoholic Beverages § 311.101. Unfinished bottles of wine may be carried out of a restaurant bar, when--transportation permitted--wineries, unfinished bottles of wine may be removed, when--transportation permitted--definition of winery

1. Notwithstanding any other provision of law, it shall not be unlawful for the owner, operator, or employees of a restaurant bar, as defined in section 311.097,  1 to allow patrons to carry out one or more bottles of unfinished wine, nor shall it be unlawful for patrons of such restaurant bar to carry out one or more bottles of unfinished wine under the following conditions:

2. Notwithstanding any other provision of law, no person who transports one or more bottles of unfinished wine which came from a restaurant bar under the circumstances described in subsection 1 of this section, in a vehicle, shall be considered to have violated any state law or local ordinance regarding open containers in vehicles so long as such person has in his or her possession the dated receipt from the restaurant bar and the bottle or bottles of wine remain in the restaurant bar-furnished, one-time-use, tamperproof, transparent bags with the seals intact.

3. Notwithstanding any other provision of law, it shall be lawful for the owner, operator, or employees of a winery to allow patrons to carry out one or more bottles of unfinished wine and it shall be lawful for patrons of such winery to carry out one or more bottles of unfinished wine under the following conditions:

4. Notwithstanding any other provision of law, no person who transports one or more bottles of unfinished wine which came from a winery under the circumstances described under subsection 3 of this section shall be considered to have violated any state law or local ordinance regarding open containers in vehicles so long as such person has in his or her possession the dated receipt from the winery and the bottle or bottles of wine remain in the winery-furnished, one-time-use, tamperproof, transparent bags with the seals intact.

5. As used in this section “winery” means any establishment at which wine is made.