Identificaciones de brianslaby

This tiny red/white/black striped snake is about 9" long, and it was in our house. Our cat was keeping track of it, and my husband came home and found it under a blanket, so he took it outside, and it was in the grass when i took these pix, some blurry, I know. Do you have any idea where it came from? We have never seen such snakes in CO. I'd received a package from CA today, so we thought it might have been in there, as there was a little gap in the wrapping, and we didn't open it right away, so maybe it crawled out of the package. He put it into the ravine behind our house. It never tried to attack. We think it is a baby. Can you help? scolburn@acsol.net Thank you.