In my opinion, Chicago customs is the worst -- even when it does pass, it often takes a long time, and the seizure rate seems higher than other locations.
There is always a chance of seizure -- so the longer it sits with no update, the more worried i get. I would sit tight -- it has not been very long for yours yet. Here is a pic of an example from one of my own personal packs last year that sat for a month in customs and then successfully arrived (image below):
But with that said, yours sounds like it has only been in the USA for a little over a week; they might not even have gotten to it yet (I am sure they have huge bins of thousands of packs piled up).
It is very difficult to estimate how long the postal system and customs can take -- it just varies greatly.Packs from the same order have come at much different speeds and can take up to weeks or even month difference. For example, the pic below is from one of my order that had the first half arrive from W2 to USA in only 25 days, while the other pack in the order took 57 days -- same order with both shipping out at the same exact time and landing in the USA (image below).
If it does get seized, you will get a letter from homeland security or US Customs and Border patrol.Do NOT reply to any seizure letters and you will have no trouble. This letter simply means your package was seized. But you do not yet have any legal trouble as long as you do NOT claim that pack (do NOT reply to the letter in any way).
If you reply or make any claim to ownership of the pack, you may face serious legal issues. For all you know, the pack was not yours and you have no idea what this letter is all about -- if anyone asks, you know nothing and it must be someone sent