Whiteboard Design Challenges

Each challenge I gave myself 30 minutes to come up with a solution to the problem

Car Locator

Situation: 15,000 employees work on a large campus and people forget where they parked their cars at the end of the day. There are 5 lots and the noise pollution from people using their car alarms to locate their vehicless needs to stop. 

The company has an app that they want to add a car locator feature to