Man that's awesome! I am so happy to hear about afellow crow hunter. Crow shoots are great fun.

As far as hunting the next day, yes you can - and you will prolly fool a couple, but you'll burn out your spot pretty quickly. Crows are incredibly intelligent and they DO remember. They learn the calls you are using and even become decoy shy. I usually give my spots about a month break between shoots, or at least 3 weeks. They still remember me, but it not well enough that I can get a few in the bag.

Welcome to the sport. It's great fun.