Mine is stuck in Calgary at the moment with the same delay, but don't worry this is completely normal. Whenever you ship something Internationally, whether to or from the US, there is a Customs delay. This rarely means that your package has been found suspicious or illegal - they just take a day...(hopefully, thats all)...to make sure your paperwork is in order. Unfortunately, there are some countries that are known for credit card fraud; sometimes it takes a bit longer.
Most likely, your package will clear within a couple of days, and it probably won't even have been opened.