Just because it has been in customs for a week doesn't necesarily mean that they picked it up. I remember a coupld cases where the package stayed in custom for almost 2 weeks and still arrived. Customs guys are slow sometimes im supposing. If it was a small package you will porbably get a seizure notice and at the most get your address flagged, but if it was a big order be careful. Good luck bro, hope I helped!
Chris