I believe you can poop in air by using a trampoline nearby and making a hole in your car (like during the Fast & Furious race) prior to that and ensure there are enough pedestrians under the car to shit on (probably around 5-6 pm when people leave their jobs). My advice would be to enrich your stomach with some 'fresh' chicken out of the Cluckin' Bell's garbage beforehand from the trash bin down the road too for the most enshittifying experience.