They do not accept American Express or Discover cards; only Apple Pay and debit card.
If you have to phone in an order, you need to pay over the phone.
To pay cash, go in person a day or two before to place the order.
A few nearby places worth checking next.
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How did I not know these places existed?! Atly's scoring is a lifesaver, now I can finally find THE spot without wasting time Googling my life away.