SPRINGFIELD — The state’s top court will decide if a Chicago ordinance that requires food truck drivers to park at least 200 feet from brick-and-mortar restaurants and maintain onboard GPS monitoring devices is unconstitutional.LMP Services Inc., which operates two Cupcakes for Courage food trucks, argued before the Supreme Court on Wednesday that the city rule unfairly targets food truck vendors in favor of traditional restaurants.The business sued Chicago a few months after City Council passed the ordinance …