Snake Visits Refugium

Haven't been on the forum for a while, but I had to share this. I was shocked to find this 2-foot long Garter snake in my refugium. I have a cat that tends to bring snakes and other critters into the house from outside, relatively unharmed. My theory is that she brought this guy into the house, where he escaped. My refugium is on the floor and my guess is that's where he decided he'd be safe from my cat.