Where can I get a carpet asap?

Check around for pricing though. Sometimes, the sources for parts will sell directly but at msrp while some (not all) of their retailers get a bulk buy discount and sell for a little cheaper. Take into consideration shipping charges and whether it is in stock and/or if it will be drop-shipped as well. I mention this since it seems like you are in a hurry. Good luck. I deal alot with Dante's Mopar Parts (link to carpet below) but there are several others and I am sure other members will chime in.

Dante's: http://www.dantesparts.com/carpet.html
ACC: http://www.accmats.com/Commerce/Search.aspx