Yes, a mistake was made, it wasn't an opossum digging up our yard, it was an armadillo. Mac caught him in the act last night and ran him off, but not before he'd put about 99 more divots in our lawn.
Mac had the trap set up, but it's not recommended that you attempt trapping them on your own. I looked trapping them on-line and it's not recommended because they carry rabies, but even better LEPROSY. They say you can drive them off using smells they dislike, such as mothballs, pet fur, pet urine, cayenne pepper or pepper spray, ammonia and strong smelling soap. To say he's unwelcome is putting it mildly. This is just a small example of what he has done to the lawn, multiply it by about 50.