I've heard a little about this case. If I understand correctly, everyone in the world agrees that his damages claim is a joke. If there is an issue, it is whether a business that posts a sign that says "Satisfaction Guaranteed" is liable in some fashion if, in fact, it does not provide satisfaction.
I would think that a fellow who lost a pair of pants at a dry cleaners would have better things to do with his time, but apparently either he (1) has very, very, very low marginal utility for his spare hours, or (2) derives tremendous utility from being a jackass.