LandLine Magazine recently reported that a covert GPS tracking device allowed police in Florida to track and recover a tractor trailer containing clothing items. The trailer was stolen as it sat unattended in a truck stop parking lot. The retail shipment, abandoned by the thieves suspected to be monitoring police traffic, was tracked to a location only 30 miles from where it was stolen. According to the article, Florida has the highest percentage of cargo theft, clothing theft adds up to more than $300,000 per year, and approximately 85% of thefts occur due to rigs left running and unattended by their drivers.
Source: http://www.landlinemag.com/Story.aspx?StoryID=26484#.UvVC2-mPLIU