Confiscation of conveyances and packages: adapted vessels, packages and proceeds become liable when used to conceal or smuggle goods. Conveyances adapted or used to conceal goods or used in smuggling, including vessels, aircraft, vehicles and animals within customs limits, are liable to confiscation; packages containing confiscable imported or export-bound goods and any goods within those packages are also liable. Goods used to conceal smuggled items (excluding conveyances used solely as transport) are subject to confiscation, and sale proceeds of goods sold with knowledge or reason to believe they were smuggled are likewise liable to confiscation.