You know its a real roadfood burger place when there is a sign on the wall behind the counter saying "NO READING OF NEWSPAPERS AT COUNTER BETWEEN 12 AND 2". And its not a hand lettered paper sign but a professionally made metal sign, like a road sign.
Only a true roadfood place would have so many throngs of lunch time customers that they have to impose that type of discipline. Especially a place with only four items on the menu (and no printed or posted actual MENU, by the way)….
Would you ever see a sign like that at a Crapplebees or a Ruby Snoozedays? I think not.