Get email/SMS tow alerts
In Cambridge (Massachusetts), if your car is towed and you don't realize it, you are charged $37.50/day until you pick it up.
This tool will search the city's public Tow Lookup system for your plate number at 10:00 AM, 4:30 PM and 10:30 PM each day. When your car is towed, it will shoot you a heads up by email or SMS.
This is a hobby project of mine, and not affiliated with the city government. I can't promise that it will work 100% of the time, but I hope you find it helpful. 🙂