Ask the dealer to provide some verification that your order was accepted and being filled by Chevrolet.
Congrats, see this great thread from cartem2 about chevy's ordering process & what happens now:
http://www.camaro6.com/forums/showthread.php?t=438736
And then read Becky’s thread:
http://www.camaro6.com/forums/showthread.php?t=415251