Don't give up hope. Snakes are amazing at surviving and seeing as it's no longer the depths of winter, he has a better shot. My escape artist was loose for 3+ months when a friend had her and showed up one day with a full belly despite having lived loose in an old farmhouse with multiple cats and 2 border collies who ate any small animal they could find. Just keep looking and watching. You never know where he might show up at. My girl was found upstairs under the vacuum cleaner after her little vacation so just keep your eyes open.