No. They come in envelopes. No rebates I know of are tracked, but you will get updates on its status up to when it ships. If it's lost and you follow up, they will likely replace it. Someone would be foolish to steal a prepaid card as it will most likely be traced to them when it gets reported stolen.
You will get it if you do it correctly.
It's not FP...
TDTD (Total Defense Tiger Direct) rebate takes some time but still comes through. The TD at Staples rebates came back to me very, very quickly.