Thanks for taking the time to reply - this story is a good reminder to treat employees/all people as well as you can, not conditionally.
Do you think there's anything the CEO could have said/done today that would make you reconsider Instacart? I do like the retroactive payments he mentioned, but wonder if the there's anything more they could do to regain a customer like you.
In Austin, the local grocery chain (HEB) has started its own delivery service in addition to being available over Instacart. Prices for their service (hebtoyou.com) are lower though delivery+shopper fees are comparable. The experience is still a bit raw (substitute specification) but pretty comparable.