[Jon Stratis]

There was a team update on 2013-02-08 which addressed this:

R21





The intent of the Robot Access Period is to provide Teams attending 2-Day Events comparable ROBOT access to that which Teams attending 3-Day Events receive during practice day. R21 has been updated to improve parity in the use of FABRICATED ITEMS between Teams attending 2-Day Events and Teams attending 3-Day Events.

Teams may bring a maximum of 30 lbs of FABRICATED ITEMS to each event to be used to repair and/or upgrade their ROBOT.

For Teams attending 2-Day Events, these FABRICATED ITEMS may be used during the Robot Access Period and/or brought to the Event, but the total weight may not exceed 30 lbs. FABRICATED ITEMS constructed during the Robot Access Period and bagged with the ROBOT are exempt from this limit.

The OPERATOR CONSOLE, BUMPERS, and any ROBOT battery assemblies (as described in R05-A) are exempt from this limit.

In other words, if its held outside the bag at any point, it's part of your 30 lbs. If you build it while the bag is open and then put it in the bag before you close it, it's not.

So the answer to your question is no - that 29lbs is part of your 30lb allowance. If you want to spend your unlock period building another 20 lbs and then lock it up, that would be allowed.