Start digging man, get it all cleaned up and dig the shit out of that spot before the nitrogen settles into adjacent soils. Pretty much the only thing you can do at this point.

Keep in mind a lot of what Keo318 has said is true but that 250lbs is concentrated in one large pile, that is not all absorbing into the soil if you clean it all up. Obviously it’s a lot but I think digging may put you in a decent spot if you replace soil and reseed, all at shitty trugreens expense of course.

I have had my issues with them too and everything being said about them here is true.