Pretty sure it's because they drop the fries when you get there so they are fresh & not soggy 😊
If you order on line I'm pretty sure they also put you in order as to what is time first in person and on line....they do orders as they come in you don't jump to the head of the line to be cooked....and I have been there when orders have been called by name rather then number meaning on line and no one is there to pick up for 3-5 mins or longer as well
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