I doubt it because it for a one time use...
I dont see why not. The restaurant calls it in and gives the operator the code on the paper. Once the code is used it wont work again. I dont see why the restaurant wont just read the phone number and code off your phone if you asked them to. But I would check with the restaurant first.
One time use doesnt matter, if I wanted to print it out 10 times I could, it would still only work once.