I completely agree. Cindy told him not to tell LE about Casey borrowing Cindy's car on July 25, and behind closed doors, he did the right thing and told them. He has morals. He also said several times in his LE interview "I have to tell you guys I didn't like that smell." He knew what it meant, and behind closed doors again, he let LE know he knew what it meant.
Personally, I don't think George is a bad guy. I think he's emotionally and verbally abused by Cindy. He's her punching bag. And I really hope he has a suitcase packed, and when he walks out of that grand jury room, he keeps on walking.