RSMO 571.107.
Lists 17 places were a Licensee may not carry concealed.
However, sub section 2 of that statute provides for no criminal violation, only a citation if found to be carrying and the licensee refuses to depart and a peace officer is summoned etc.
So, conceal.
Here is that section in part:
2. Carrying of a concealed firearm in a location specified in subdivisions (1) to (17) of subsection 1 of this section by any individual who holds a concealed carry permit issued pursuant to sections 571.101 to 571.121, or a concealed carry endorsement issued prior to August 28, 2013, shall not be a criminal act but may subject the person to denial to the premises or removal from the premises. If such person refuses to leave the premises and a peace officer is summoned, such person may be issued a citation for an amount not to exceed one hundred dollars for the first offense.
This is one law that I break on a regular basis. If I’m there, it’s no longer a gun free zone.