Mo. Rev. Stat. § 389.560

Any consignee or person entitled to receive the delivery of grain transported in bulk by any railroad shall have forty-eight hours, free of expense, after actual notice of arrival by the corporation to the consignee, in which to remove the same from the cars of such railroad corporation if he shall desire to receive it from the cars on the track, which forty-eight hours shall be held to embrace such time as the car containing such property is placed and kept by such corporation in a convenient and proper place for unloading. And it shall not be held to have been placed in a proper place for unloading unless it can be reached by the consignee or person entitled to receive it, with teams or other suitable means for removing the property from the car, and reasonably convenient to the depot of such railroad corporation at which it is accustomed to receive and unload merchandise consigned to that station or place. Nothing herein contained, however, shall be held to authorize the changing of any consignment of grain except as to the place at which it is to be delivered or unloaded, nor shall such change of consignment in any degree affect the ownership or control of property in any other way.