Hmmmm. This sounds like a job for Cowpie, the best source of country lyrics I know of:

http://www.roughstock.com/cowpie/cowpie-songs/

Songs are listed by artist name. I checked a few of the many Kristofferson songs on the list, and couldn't find your song right off. maybe you'll have better luck.

....Unless it's the Highwaymen song where the men question the waitress for her generosity to some kids, and she says, "what's it to you?" - and then they leave her a huge tip and she tries to give it back, and they say, "What's it to you?"

This one is a mystery to me. Good luck.

-Joe Offer-