答案是NO。正如法官判小賊偷了東西,但可以keep賊髒。違憲的收入,政府有義務退還, 不退還,進口商也會file lawsuit against the govt for the refund. 退欵不僅是唯一的mess, 已簽定的關稅恊義如何處理等?a complete mess so said in the oral argument.