I would just add a second hide. You want one over the uth but you also want a place the snake can go to cool off and still feel comfortable.

These are really great. http://www.reptilebasics.com/hide-boxes

Unless you want the rock looking ones the ReptileBasics ones are sturdy, cheap, and easy to clean. If they wouldn't arrive on time you could use many other homemade solutions. Box, bowl with door cut (dollar store), crinkled newspaper, etc.