Instacart complaint: I received spoiled food During Delivery. Gross

I placed a order with Instacart. We are a yearly member due to the virus now. Store shopped in is Costco. Shopper called and said she is on the way to our home. Waited a long time and she finally arrived. Nothing was in anything to keep food cold. As soon as she left we placed frozen food in the freezer. Ice cream was melted, I noticed so I didn’t put that in the freezer. Then quickly put food in the refrigerator. Moved non perishable like cans, etc. aside while I started taking one item out of the fridge. to portion and freeze. Did this with the next package and when I opened the franks to portion slime came out around the franks. Gross I jumped back. I called Costco thinking something was wrong with there case in the store. I spoke to a manager, he knew immediately as soon as I told him my story. He informed me that my food spoiled during delivery. He said do not eat any perishable food and discard all of it. He said please do this and bring it back to Costco for a refund and I told him we do not go out that is why we use Instacart. I called Instacart and got a refund. O-K I do not want at this time to shop now so I will do without what I need for at least a week so grossed out. Instacart says they encourages shoppers to have thermal bags. Not once in almost a year did anything come out of a thermal bag or container. Never mind encouraging the shopper, Instacart should be solely responsible for thermal containers with ice packs also. How is Instacart in business? What is the law that they are supposed to follow? Am I upset, yes, I am sure I am not the only person that received spoiled food during delivery. I am now thinking, the shopper might of picked up fertilizer or insecticide for himself and brought it to his home then did grocery shopping for a customer. Someone can get poisoned without knowing the food was spoiled. I realized my food was spoiled due to slime on my franks. Are we supposed to take the temperature of the food that comes to us? Maybe?