Definitely don't give out hope. My cockatiel, Raptor was spooked and accidentally flew out the patio door last summer. My boyfriend didn't know he was out, and I didn't know the door was open. He was gone 3 nights and 4 days. He flew almost 15km away from where I lived. I was 100% sure that he was dead, and I would never see him again. But! He hopped onto somebodies railing and they recognized that he was not a wild bird. They went out and he jumped right on their finger, and then flew to their kitchen tap. They turned on the water and apparently he drank and drank and drank. Then they got him some food and set up a little hospital cage and called Animal Control, who then called me. I was in the middle of cleaning somebodies house (that's what I do for work) but I ripped out of there so fast when I got that call. I forgot to even grab something to bring Raptor home in! But, he is home!

So, miracles do happen, my friend, and I am sure you will find your snake! My fingers are crossed for you