Your problem is evident in your own post, why are you cashing them at a restaurant? Never heard of that before. You should be cashing them at the bank and most banks will cash them no problem...
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"The towers are gone now, reduced to bloody rubble, along with all hopes for Peace in Our Time, in the United States or any other country. Make no mistake about it: We are At War now -- with somebody -- and we will stay At War with that mysterious Enemy for the rest of our lives." H.S.T. 09/12/01