Here in NC, we don't sighn anything, everything is computerized, its called an E citation, makes the process faster but, not everywhere here in NC, some still use the old carbon copy. Yea your still stuck w/the ticket, go to court. Like someone said, sighning has nothing to do w/the plea just saying you recieved the ticket and have knowledge of the ticket. Most speeding issues are jailable if the cop wishes. 20 mph's or over I think here is jailable, most don't mess w/unless it is 15 mphs or more, not worth the time in court or the danger staying on the side of the road. Long story short, go to court or get a lawyer, you still have to answer to the ticket signatrure or no signature.