Fully understanding that Foyet was stalking Hotch and that to attack and kill Haley in their home is a very deliberate, pointed act… it woulda been way cooler in a Walmart parking lot. Foyet was already stalking Hotch so he probably had a camp set up nearby Hotch's apartment. It would make sense that even in a city, the two of them could end up at the same gas station or Walmart at the same time. And Walmart parking lots are basically just arenas for a good old fashioned fist-fight anyway.. Hotch is a sophisticated man, he would drop what’s in his hands and take the fight to the parking lot and I feel Foyet probably isn’t going to walk away from a chance to publicly kill Hotch, if that’s the way this fight goes.
And at ten o’clock, who’s working the Walmart but mostly high schoolers? So imagine Hotch and Foyet both trying to desperately beat the other to death while a group of high schoolers, all trained for a moment like this, with their phones out, taking sides on which one of the two bloody men is the one that deserves this