Call their bluff with "am I free to go?" Otherwise they'll use all kinds of squishy terms to persuade you to stay for the search when you don't have to. Recordi

Call their bluff with "am I free to go?" Otherwise they'll use all kinds of squishy terms to persuade you to stay for the search when you don't have to. Recording it, of course, would be vital. IANAL, YMMV.