Has anyone ever seen a Sonic?

I've been seeing tons of commercials for Sonic (the 7-11 type place) for about 5 years, but I've never actually ever seen one. Where are they? I live on the west coast around, San Francisco, but I travel a lot and have still never seen one.
Update: Alrite my bad. I don't know what a Sonic is because I've never seen one and neither has anybody I know!

And yea we got In N Out which is the best fast food burger in the nation
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