Can't retract to go under TUNNEL?

[LH Machinist]

Seems somewhat plausible per <G30>

Starting small in zone 1 or 3 you can extend in zone 2 and cannot contract to go back under a tunnel.

<G30> ROBOT Volume – During a MATCH, no part of the ROBOT shall extend outside the vertical projection of the FRAME PERIMETER, except as follows:
c. TOWER Contact ROBOT Volume - During a MATCH, ROBOTS in contact with their ALLIANCE TOWER may extend beyond their NORMAL CONFIGURATION volume but may not exceed the FINALE CONFIGURATION maximum volume.