This evening I made a drive from Orlando, FL to Boynton Beach, FL. Once I got off I95 and came to a complete stop in neutral I noticed the car idling unsteadly climbing to 1500 and dropping down to idle and repeating this process. Any help?

 

Take it to the dealership if your car is still under warranty. I had a similar issue and because of my warranty, I avoided a $1000+ fix.