Hell no. Has never ever crossed my mind to even consider packing his clothes. I assume it's never crossed his mind to pack my clothes either.
in terms of unpacking, usually our dirty clothes are in together, so I unpack that, the rest we do separately.
ETA: I just asked DH if he would like me to pack his clothes when we go away and he looked at me like I was crazy and said "NO! why would you even ask? Am I frickin hopeless or something".