Gas station's promotional event triggers traffic jam.
Thousands of cars lined up for a free gas giveaway in Decatur, Georgia Thursday morning.
The Shell station at DeKalb Industrial Way offered customers free gas from 7 a.m. until 8:30 a.m.
By the time it was over, they had given away more than $30,000 worth of gas to nearly 600 drivers.
There was a 15-gallon limit per car.