Thanks he was going for a car ride tomorrow. I will check the backyard today for ?I wouldn't do that. Dehydration could be a reason for not pooping and then putting him in only 100 degree temps he can't get out of would dehydrate him more.
A long soak in a large container he can move in, a car ride, cucumber and lettuce, watery foods can all help.
If there is none today or tomorrow. I will soak and then a car ride.