What part of the country are you in?
There is no evidence of slowdown here in NE Atlanta. People in their big SUVs still barreling long on GA-400 at 80mph+, restaurants still packed every night with waiting, and they are still buying the 3500sq ft plus mcmansions.
I think there has been some demand destruction among the poorest americans.  I've started to see poor men in my town riding bikes in the morning.  These are clearly men biking to work based on their dress, not biking for exercise.  

Also I frequently hear from my public assistance patients that they are trying to plan all of their medical tests and doctor visits on the same day so they only have to come to town once a month.  These are the poorest of the poor.  But if the lowest 5% reduce their driving by 20%, the overall effect is a 1% reduction in the rate of growth.  

Among middle to upper income people, there hasn't been any demand destruction around here. Everyone in Ohio who can afford it is still taking their annual beach vacation to the Carolinas.