You do know that they're in vehicles that they're moving in and out of the city, correct? It's not like they're all just parked in one spot and staying there the entire time.
Unlike people with fixed addresses, they can just up and move to a quiet part of the city to sleep, and then drive back after.
Unlike people with fixed addresses, they can just up and move to a quiet part of the city to sleep, and then drive back after.