It is a crime to possess kiddie porn and to commit murders. The drugs are another topic altogether. It'd still require your voluntary co-operation or a search warrent to search the car though. Guns are still a LEGAL item to own, at least until you gun banners get your illegal laws passed.
Another false dichotomy. Is this all you've got left?
It's illegal to violate the right of a property owner to set conditions on access and use of their property, but you seem to think that it is OK to violate that legality, why would a few more violations mean anything to you?