So what's the deal with the Crutchfield.com Refer-A-Friend?

[aphex]

I've noticed that the normal crutchfield coupons have quite a few product exclusions, I.E. - Apple, Velodyne, Infinity, etc....

But the Refer-A-Friend dosent seem to have any restrictions, except that it has to be for a first time customer... No product restrictions...

http://www.crutchfield.com/sendafriend

Anyone know if this is the case?