Do the right thing. Take a stand for human decency and make a compromise by closing your instacart account now. Absorb the inconvenience and do your own shopping. And make sure to tell instacart to (insert profanity of choice) if you can while closing your account. That behaviour is low down and dirty. Shady craigs list used car dealer level stuff.

I just walked three blocks in the rain to the local grocery store to pick up stuff to make dinner and food for tomorrow. Not like I was jumping for joy and made a dash for the door. I didn't want to, but I did. That's life.