Having more than one tetra

[russell]

LOADING ZONE – The triangular colored area on the floor at the sides of the field where robots may receive
and/or retrieve TETRAS that are introduced into the game.

<G14> Field attendants will place TETRAS on the Tetra Loading Stations on the side of the field opposite the
HUMAN PLAYERS (ie. the “automated” LOADING ZONE). At any time, a ROBOT may enter the
corresponding LOADING ZONE, retrieve the TETRA from the Loading Station, and enter it into play. The
HUMAN PLAYER does not have to leave the pressure pad sensor during this operation. When the TETRA
is removed from the Loading Station and the ROBOT has left the LOADING ZONE, the field attendant will
place a new TETRA on the Loading Station. Robots may not intentionally interfere with field attendant’s
efforts to place TETRAS on the Loading Stations.

The things I am wondering about are a) it says the loading zone is the triangle, but it also says you can "enter" it. Triangles are two dimensional and you cannot enter something two dimensional. Does simply occupying the air above it count as entering the loading zone, or must the robot actually touch the triangle? and b) how rapidly will the stations be reloaded?