As you probably have figured out it is possible to place tiles under the underground nest entrance. However, on some rotations of the entrance a player can place tiles under the entire entrance while at other rotations a player can't completely cover it.
This inconsistancy feels a bit odd.
Example of full highway coverage:
Example of not being able to fully cover it in highways:
This inconsistancy feels a bit odd.
Example of full highway coverage:
Example of not being able to fully cover it in highways: