RFD's are supposed to confiscate an airgun if it chrono's over the limit, which is why it can be helpful for bbs members to chrono each others guns, so that a gun running very close, or only marginally "over" (which happens to quite a few people occasionally - especially after a service) won't risk being taken away for the sake of 0.2ftlb.
A friend of mine once asked a gunshop to check his gun. They told him that if it chrono'd over, they would confiscate it and therefore, they asked whether he was sure that he wanted to proceed with the check.