If you are talking about Eunice Stone, the lady that called authorities, she was a customer at Shoney's at the time. I gather that from her statement that she was in the booth next to the ME pranksters. The ME's got up to leave and she told her son "Let's go." Her son said "But we don't have our check yet." She replied "Don't worry, we'll get our check. Let's go." She followed the guys out and wrote down the license plate.
Those quotes are not verbatim, but from my recollection of her telling the story yesterday on FOX News Channel. And just fyi. Thanks.