The last time I read something of Cody Goodfellow’s, it was the novel Unamerica, a book which would accurately be described as “sprawling.” From extensive riffing on national borders to psychedelic passages, Unamerica covered a lot of ground; it was both keenly political and mind-bendingly psychedelic. What do you do for an encore, once that’s out in the world? Zig where one might expect a zag, apparently. Goodfellow’s latest book, Gridlocked, brings together two novellas about punk rock, traffic jams, cults, and werewolves. As befits the punk band featured in the book’s second novella, “Breaking The Chain Letter,” these are short, fast, and meant to be played loud.