I heard this sound once at a Gas Station by my cousin's apartment in Columbus back in May when I was making a cigarette and Monster run after the first day of a big rock festival down there. I thought I was hallucinating too seeing as I was completely exhausted after moshing and running and walking and jumping and screaming all day long. It was the best day of my life though because I got to see my favorite band of all time, Korn like 50' from the stage and I also met the lead singer Jonathan Davis and got his autograph at the Monster Energy trailer there at the event. God if I'd only known he would be there I would've brought my favorite Korn album with me, Life Is Peachy. Anyway, after going off on a tangent to make a long story short, I heard the Sonic ring at this gas station and my cousin who was with me honestly thought it was my phone because I have the Sonic ring sound for my text messages sometimes.