I recieved a response from ACC about the fit of their carpet. I sent them pictures showing the lumps on the transmission hump and in the front floor pans. They recommended putting a pad under the hump and using a heat gun on the rest. They also mentioned that they thought they have fixed the problem on future carpet orders. Who knows how long you will have to wait for them to sell the existing inventory and get one of the "fixed" carpet pieces?
In other words, I guess I am on my own to fix the problem without assistance from ACC, but I should keep buying from them in the future. I am very disappointed with their response.