Thank you for all your words of reassurance. It's amazing how these little cars just steal our hearts and change our lives!
I had tried giving him a kong the third or fourth day we had him home when my husband and I left for a half hour to run an errand. He had absolutely no interest in it at all and it sat in his crate/pen untouched. Based on your advice, I decided to give it a try again today while my cleaning lady was here running the vacuum cleaner -- a new sound for Bailey. Well, it's like nothing in the world existed for Bailey except for that kong! I'm excited I have a tool I can use to distract him as I leave!