Park Patrol for Android is a native application built using location services to mark where a user has parked on a map. Once the user has marked his position, he receives push notifications if another user spots a parking officer somewhere in the vicinity giving them time to move their car before they're ticketed.
From this initial screen, the user can set see their position and the surrounding map.
A short description of the application, how the application utilises crowd-sourcing, and directions on how to use it.
On this screen, the user can choose his current location as their parking spot and select a notification range and a time limit.
While you're away from your car, you receive any notifications of any park officers that spotting are within range of your car.