Would you agree that a reasonable assumption that if an electronic is shipped with an AC adaptor, then that electronic will be used with it?
And CBP does not have a crystal ball:
- Are you using it as is?
- If the UL marking is fake, who is to know about the entire thing?
- Are you going to resell this? If so, is the AC adaptor going with it?
- How do they know that this was an honest mistake? Do they take the your word at face value?
I could go on and on with scenarios. I get it, that is not fun. But I will ask you, what should they have done?