It should be fine unless you built up a lot of static walking in socked feet on the carpet and felt it 'pop' when you touched it (similar to touching someone else's hand/arm or a doorknob). Static shock can be a real issue but likeliness of it happening are pretty slim. If anything consider using a lint free cloth and a little isopropyl rubbing alcohol, dampen the cloth and just wipe the fingerprints off. Just to remove any oils from your hands off the metal contacts on the backside (lands) of the cpu.