I'm guessing Sonny Shroyer is a lot like Enos....only much smarter. (Of course Enos was pretty smart when he a cop in Los Angeles.) But I'm sure Sonny is a true Southern gentleman.
I saw it the night it originally aired so my memory might deceive me. It's been awhile. But your question rang a bell and I think I was suspicious of him. The writers did a good job of throwing those curveballs when guessing if someone was good or bad. Most of the time it was predictable but there were enough surprises from past episodes you always wondered on the new ep you were watching.