[DaveCT]

In LabVIEW you can get the "TeleOp Elapsed Seconds" from the Match Info control input to the Teleop vi. Compare this with the expected match length - however long your mechanism needs.

As was mentioned I'd be very careful about how you implement this though, the consequence for an unexpected firing while troubleshooting in the pits could be severe. Last year it took over 2 minutes to fully charge our pneumatic system from empty. It was routine for the "auto hang" feature to trip while testing or charging. Something like a missile switch to enable/disable this functionality might help mitigate it, but wouldn't be fool proof.