Exactly what I did. I tried to get the sensor tool to work but there is not enough room back there. I just unscrewed that wiring harness, shoved my arm between it and the head and used a good old fashioned wrench! Come to think of it, I have never used a "special" tool for any job that everyone says you're supposed to! Well, except changing the serpentine, my breaker bar wouldn't fit between the unibody and the tensioner.
Anyhow, welcome to the CEG!