Honestly, and i know this is hard, but when i had a snake escape on me i searched for her frantically for days with no sign of her but the occasional poop (this was a colurbrid so they poo waaaay more often then balls). I stopped looking for her and found her a week or 2 later in the same room, less than 6 feet from her cage.
keep an eye out, but dont stress yourself. Put down a live mouse in a container with some air holes, if its near feeding time she may come out to look for food.