Drawbridge Door Contact Question

[seg9585]

I know for a crossing of the Drawbridge to officially count, a robot in the neutral zone not touching any component of the outer works must cross completely through the obstacle into the Courtyard. Also, it's legal to use teamwork to hold the drawbridge door down for another robot to cross through.

Can anyone say for sure if the following maneuver is regarded as a Drawbridge crossing (before I ask in the GDC):

Cross a different obstacle into the opponent courtyard, drive through the Drawbridge from the back (driving back into the neutral zone, but using an extrusion to hold the door open), then "tapping" the Drawbridge door into the ground (which will instantaneously lose contact with the arm and entire robot), then simply driving back through the Drawbridge obstacle to claim an entry?

I don't see a rule stating that the drawbridge door must be fully closed or a certain amount of time must pass between obstacle contact to declare it to be the start of a Crossing.