Can you get a Shirley temple or a Roy rogers drink at a fast food restaurant?

Most restaurants, including fast food places have jars of cherries to put cherries on top of sundaes. If the restaurant does not have a Roy Rogers or Shirley Temple on their menu or if they don;t have grenadine,, it s a simple thing to ask them to put some juice from the bottle of cherries into a gl filled with sprite or 7 up.