[IxD Theory] Parking app

What’s your pet app idea? Based on the tools and processes that Aaron shared, discuss the minimum essential features, as well as elements that are not essential that you would want to add after launch. 

The first two things that came to mind in response to this prompt were a drinking fountain finding app and a public restroom finding app. Buuuuut, they already exist. So here's one that doesn't exist: an app to prevent you from getting parking tickets.
Yes, ok, there are parking apps, to help you find open spaces, remember where your car is, pay parking meters, etc, but none of them really prevent you from getting parking tickets. And they aren't much help off of the main streets. Like most urban areas, San Francisco has complicated street sweeping schedules and parking restrictions. To further my issue with parking tickets, the walk-ability of the city and the availability public transportation means that I often go days without using my car. Out of sight out of mind.

It would be great if I could simply drop a pin when I parked my car, and be notified if I was approaching a ticketing time.


The minimum essential features:

• Mapping of street sweeping schedules, hourly parking restrictions, and permit requirements
• Ability to automatically send alerts when your car needs to be moved
• Uses GPS data, but also allows for manual entry
• Allows for customized alerts...15 minutes advance notice - 1 day advance notice

Features to add:

• Notes from neighbors/social aspect. For example, my street has street sweeping posted from 8:00-10:00 am, but the street sweepers never get to my street until 9:00 am.
• Price per minute at parking meters. As San Francisco moves their new smart meters throughout the city, parking prices are becoming more variable. This feature would track the fluctuating price of parking meters and alert you when your meter was about to run out, or show you in advance how many quarters to bring with you.
• Ability to tag your secret parking spots. Did you stumble upon great/secret spot in a busy and unfamiliar area? Tag it so you will be able to find it again the next time you're in the neighborhood.
• Ability to share your tags/notes or keep them private