Manual placement of tetras

[AIBob]

<G13> Following the AUTONOMOUS PERIOD, HUMAN PLAYERS may deliver TETRAS to their team’s
ROBOT when the ROBOT enters the LOADING ZONE on their side of the field (i.e. the “manual”
LOADING ZONE). Once the ROBOT is in the LOADING ZONE, the HUMAN PLAYER may step off the
pressure pad sensor and safely approach the LOADING ZONE with a TETRA. While the ROBOT is
disabled the HUMAN PLAYER may place the TETRA on or in the ROBOT, or any ROBOT mechanism
designed to grasp the TETRAS. The HUMAN PLAYER must then return to the pressure pad sensor before
the ROBOT will be re-enabled and resume play. The DRIVER and HUMAN PLAYER have a shared
responsibility to ensure that the ROBOT has entered the LOADING ZONE. If a HUMAN PLAYER loads a
TETRA onto a ROBOT that is not in the LOADING ZONE, a 10-point penalty will be assessed, and the
TETRA will not be SCORED.

It does not state that you may place them on the floor, so I would assume no. I belive that they would not allow it because of saftey issues also.

It is always a good idea to read the rules.