Google Street View (Unfortunately in low resolution)
A ridiculous road sign on Bogie Lake Road, White Lake, Michigan, which tells motorist to slow down during 6 precise timings 6:49-7:15 AM, 7:52-8:22 AM 8:37-9:07 AM, 2:03-2:33 PM, 3:04-3:34 and 3:59-4:29 PM.
Not only the car's watch or the driver's watch (if he/she is wearing one) has to be precise but the driver has to keep track of the time also so as to adhere to the speed limit.
Full story: Oakland Press
Credits for the story: Good Morning America on Google Plus