Yep, that's a boom microphone.
About 20 minutes in, after the first Juliette Lewis scene, a long take where all the cops are in a diner. Wow!!! maybe it's just the vhs aspect ratio, but hot damn that was an amazing bit of in-shot boom magic. Hope it's not a sign of the quality of the rest of the film...
30 inches of thigh slapping, blood pumping, nuclear brain damage!