It might be allowed, but it's hard to say. The rule about what you can have in contact with the field seems to make it unlikely.
Code:
<R08> ROBOT wheels, tracks, and other parts intended to provide traction on the FIELD may be
purchased or fabricated (“traction devices” include all parts of the ROBOT that are designed
to transmit any propulsive and/or braking forces between the ROBOT and the FIELD). In no
case will traction devices that damage the carpet or other playing surfaces be permitted.
Traction devices shall not have surface features such as metal, sandpaper, hard plastic
studs, cleats, or other attachments. Anchors (i.e. devices that are deployed/used to keep
one’s ROBOT in one place and prevent if from being moved by another ROBOT) shall not
use metal in contact with the carpet to “stay put.” Gaining traction by using adhesives or
Velcro-like fastener material is not allowed.