[Kevin Sevcik]

I stand corrected. I thought that rule was around, but couldn't find it thanks to usfirst.org not working. From FIRSTsearch, for those curious:

<R15> At the competitions: Teams are allowed to repair, modify or upgrade their competition robots while participating in a competition event event. To support this, teams may bring SPARE, REPLACEMENT and UPGRADE PARTS and COTS items to the competitions (within the limits specified in Rules <R23> and <R24>). Work may only be done on-site in the Pits or at any facility made available to all teams at the event (e.g., in a team’s repair trailer or a local team’s shop offered to all teams to use). Fabrication may be done when the Pit area is open for normal operations during the period starting with the opening of the Pit area on Thursday and ending at 4:00PM on Saturday. All work must be completed when the Pit area closes each evening. Parts may not be removed from the competition site and retained overnight after the Pit area closes.