This happened to me last night. I have TRIED to get a delivery from the location 6 miles from me. There is no way I could figure out on the 5 Guys website to change or select the location you are ordering from. It always defaulted to the one 1 mile from my house.
Until last night. I placed the order and it wasn't until I got the order confirmation e-mail that I noticed it was for the location 6 miles away.
Luckily, that location was available for delivery on the board so I grabbed that shop. Then I rescheduled the shop for the location 1 mile from me to today. Hopefully this doesn't happen again.
If you ordered from the 5 Guys website, I believe you could have called the location or the 866 customer service number and they could have cancelled the order. I'm not sure if you ordered from a third party if they could have cancelled it or not.
I was thinking perhaps there is something in the 5 Guys system that would divert orders to a nearby location if one location gets more than they can handle.