The restaurant industry’s ad spending finally slowed in the third quarter, but it is still ahead of the total U.S. advertising growth for the year. Restaurants spent $1.58 billion on measured-media advertising (excludes Internet advertising, free-standing inserts and public-service ads) during the third quarter, a 3.6% decrease from the Olympics-inflated $1.64 billion spent during the July-September span in 2012. Total U.S. ad spending also was down for Q3, dipping 1.9% (vs. a year ago) to $34 billion, according to Kantar Media.