With the JTA lunchtime trolley service to Riverside, gov't removes a large portion of d'town lunch money from d'town. Sudden food truck anxiety from gov't seems to confirm that local gov't wishes to reduce access to palatable and affordable food in the CBD. If local gov't determines food trucks are okay in CBD, then I think we should figure food trucks are hastening the demise of downtown lunchrooms.
Note that allowing art galleries to sell alcohol during Art Walk and sometimes giving free (taxpayer-funded) beer kegs during Art Walk, e.g. Artoberfest in October, for more than ten years has hurt downtown's bars and taverns.
In a 40-years-slow economic erosion, downtown Jacksonville shed its U. S. post office, all office supply stores, all dime stores, all department stores, popcorn and other food vendors serving the central bus stop, all commercial movie theaters, all package liquor stores, all public drinking water fountains, all public telephones, and the most important events ticket office in north FL (originally at Visitors and Convention Bureau in Hemming Park, then at Ticketmaster desk inside downtown Sears, presently at the service desk of the Avenues Mall). Will all alcoholic libations and all sit-down food service outside the major hotels be next to go?