Unfortunately, holding onto the fuel tank spelled certain doom; it is doubtful he would have been able to remain attached as the violent shaking and g-forces took hold. Although he made it as high as the launch tower, it is likely the bat dropped off and died in the searing 1400C exhaust of the throttling boosters.
"Necessity is the mother of invention" is a silly proverb. "Necessity is the mother of futile dodges" is much nearer the truth. -- Alfred North Whitehead