No MMM, They’re not lying , they’re panicking. Not many untrained people in that situation are capable of being rational. I expect that’s kinda the point.
A distinction without a difference in this case. If he can say he can’t breathe, panicked or not, he can still breathe.
But look, I agree at the point he was put on the ground, he was probably feeling panic. But that’s the problem with a criminal throwing every fake excuse out to avoid arrest - if there is real distress, it is that much less believable. Even before he was on the ground, he was saying he can’t breathe. It was all boy-who-cried-wolf to some extent.