Live only in SOMA, San Francisco.
Use Bistro to order a meal from the convenience of your car and pick it up curbside. Payment is handled through the app when you order. To pickup your meal, just drive up to meet your host curbside. Your host will be wearing a bright orange shirt which says "Bistro". No parking, no hassle.
Background location will only be accessed in the time between when you place an order on Bistro and when you pick up that order. That being said, continued use of GPS running in the background can dramatically decrease battery life.