Not sure if you know this, but you can't just do that. If there is anything wrong, you have to give the supplying dealer a fair chance to fix it before you can even think about rejection. The SOGA does give you an incredible amount of protection, but you do have to go the right way about it.
Get the code read ASAP, you can do the pedal dance to get it (there's a sticky on here on how to do that), and then one of us will hopefully be able to put your mind at ease.