towing a chevy colbalt

I tow a 2007 Chevy HHR, automatic. As far as I know, both the HHR and the Cobalt share the same chassis...and motor and tranny. I leave the ignition key in,put the tranny in "N" pull a 2 AMP fuse and off y'go.
IF....If I'm right, you should have no problems with 4-down. But check things out with the "experts" before you do anything. And g'luck!