The guy's been dead/in suspended animation/WHATEVER he was for at least a month or so - you don't think his hair is going to grow a little longer during that time? One could argue that him KEEPING the hairdo might have been a tad unwise, but really, it's a hairdo. A hairdo shouldn't be a dealbreaker. If I see the most beautiful woman I've ever seen walking down the street with her hair died puke-green and in foot-long spikes, she's still going to be the most beautiful woman I've ever seen.