Last Friday, Indy’s food truck caravan circled up in the parking lot of the Murat Theatre for some Labor Day weekend curbside service. The sweltering blacktop and excruciating lines significantly raised the stock for Pop Cycle’s organic frozen treats and (guess the joke’s on us!) practically everything on the picture menu of a Summer Song ice cream truck. A portabella sandwich from the Fat Sammies window tempered the mushroom’s smoky flavors with a sweet marinara sauce. The queue stretched to infinity for the baby burgers at Keys Gourmet Catering’s Slider Station, and the employees of Byrne’s Grilled Pizza were perpetual-motion machines churning out thin-crust margarita pies. Diners sipped adorably packaged (though shamefully overpriced at $12 a bottle) Beanblossom Hard Ciders from Oliver Winery while demonstrating their corn-holing prowess. But precious Mabel on the Move, the only food truck to take on the tin-can aesthetics of an Airstream trailer, won all of the style points.