Gray-Lewis said he sent the Jones' a letter in February asking them to remove the boat, citing a city ordinance that prohibits people from using the city's public landing along the Yazoo Diversion Canal at city front without the permission of the board or the police chief. [...] let the process begin. Because if not, we're serving as jury and judges before it gets to us, and I don't feel comfortable about that. The Jones' closed Mississippi River Tours in September 2012 and put the boat up for sale, citing a drop in business because of the economy and stricter Coast Guard regulations. Jim Jones said the 2011 spring flood, when the Mississippi River reached record heights in Vicksburg, cresting on May 19 at 57.1, 14.1 feet above flood stage and nine-tenths of a foot above the great flood of 1927 forced the Sweet Olive to shut down for that spring and much of that summer, also hurt the business.