I do not find any reference to dock audits specifically called out in ISO9000:2000, but TS 16949 has a clause that reads:
"8.2.2.3 Product audit
The organization shall audit products at appropriate stages of production and delivery to verify conformity to all specified requirements, such as product dimensions, functionality, packaging and labelling, at a defined frequency."
Now such a clause could be interpreted as a requirement for dimensional checks at dock audit, but the clause does not say
all specified requirements will be checked at all stages, same as it does not say
every element shall be audited on every shift in each year. There has been a fair amount of argument about that one too. One should not read too much into those standards.
The key words in the product audit clause are "at appropriate stages of production and delivery." That means after the item is boxed and labeled, the box doesn't need to be opened again and the same dimensions checked yet again. It means packing and labeling shoudl be included in the checks, since these aspects can impact customer satisfaction.