I'm not disputing this or anything, but this coupon looks like one
I could make. There aren't any disclaimers or ANYTHING on it, like their regular coupons have.
EDIT: Okay, I went to the root page, and you get this coupon for taking their survey:
http://www.arbys-rmi.com/ccsurvey.htm
"Thank you for taking the time to give us your opinion . Print this coupon and redeem it at participating Arby's restaurants. "
They also have other coupons on another page:
http://www.arbys-rmi.com/freecoup.htm
These are only good in the Greater Cincinnati and Chattanooga areas, and you have to buy the fries and the drink to get the sandwich free.
The one that Mare posted looks like it's good anywhere, if your Arby's will take it. I'll try it this week and see!