Okay, I found something pretty decent - it's Kashi Go Lean Crunchy! protein and fiber bars (perhaps different bar than you were looking at.) They have 28g of carbs, 8g of protein, and 150 calories. And of course, it's portable, so that's on bar with what I was looking for.
Starting weight: 192.0 lbs (6/19/2011)
Lowest weight: 154.6 (6/25/2012)
Current weight: 162.8 lbs (1/28/2013)
Total lost: 29.2 lbs
Goal: 132 lbs