Looks awesome Breeze!
With rubs that contain ANY sugars… they will cause the skin to look burned where the temps get above 350F, and there is much accumulation of the rub. Do a comparative look at where the rub was a little heavier on the bird, vs thinner application. You will notice the rub carbonized/blackening. Not a problem - it looks like it was roasted offer an open fire.
And - that is a good thing!
Your cautions about cooking inside a structure ( whether it be a garage or any building) should be noted by all. But - we are adults, and must make judgement calls each and every day. We each must observe the exact conditions that we are cooking in. Situational awareness is key to survival - right?
The bottom line is BE SAFE….
Great looking bird - I will bet it was juicy and tender too!