The NCV3 put the ambient air temp sensor in various places ... in some it poked into one of the "step" footwells in the front bumper ... so you could more easily break it when you put your foot in there to deal with the windshield or wipers.
But (2006) you have a T1N, so it goes in a hole behind the front license plate ... it's a fairly scruffy hole (little bits of fiberglass on its edges). Since the ambient readout was an "option", it may even be a "drill after molding" instead of "built in" to the bumper's plastic mold.
But yes: that photo definitely shows an ambient air temperature sensor.
--dick