i really hope you find him!! He should definitly be around some where. Be careful with your dogs too. You never know. Also...put food out and does he like the yogurt bites? Cuz my gp comes running when you shake that so maybe he'll come....and make sure there are no wires for him to chew on!!!
Stay on the look out for droppings and put food and veggies out to keep him fed...I am sure you will find him!