I read somewhere on here recently that there is a discount code for first time orders for Vons, to waive the delivery charge. It's just "deliveries". Might want to try that. If it doesn't work, you can always cancel. I wrote it down because I plan to do the same thing when we go in October.
Edit: by the way, have you started your order yet and added up how much it is? When we did it in March, we hit $50 quite easily-- but then we are a family of 5, and we ordered lots of breakfast and snacky stuff, plus milk, soymilk and juice, along with our rack of water. Also plastic spoons and a roll of paper towels. It worked out so well, and we didn't waste much. Most of it we used up while there. Fresh fruit is great to grab and eat in line while waiting for Early Entry!