To update things on my end, I received my package today. The USPS tracking number that alotofthings had on their website was a digit off, which explains not getting any updates on the USPS website.
I also would like to know if they went out of business. I ordered some ink from them on July 30th. According to their website, my ink was shipped on August 1st and there was a USPS tracking number. But according to the USPS website, I get "There is no record of this item."