Jimar lives in one of the newer loft buildings in town. He’s got an outstanding view of the green beltway that follows Buffalo Bayou. They’ve recently updated the surrounding area to be parkland with trails for walking, jogging, bicycling, etc. Jimar uses the trails to meet and make drug deals. Ms. Miu Miu told me to get within a mile, so I pulled into an empty space along the jogging trail of Memorial Park and put the car in neutral.

“What now?” I asked.

“Now y...