Melting Profits Threaten the Ice Cream Man

On a steamy evening at

in Queens, Jaime Cabal had a line of customers at his Mister Softee ice cream truck. He blended milkshakes, topped bowls of vanilla soft-serve with strawberries and dipped cones into cherry and blue-raspberry shell. One boy no sooner finished his treat than he begged his parents for more, pointing at the menu’s pops shaped like SpongeBob SquarePants, Sonic the Hedgehog and Tweety.

Crowds…