Did you find a way out of the freeway tunnel?
Yes! On the hays side you can sneak through between the freeway and the edge of the tree farm and through a very convenient hole in the fence out onto minogue/ meldrum street.
There was a sneaky one under Hindmarsh Drive in Canberra which was an occasional running route for me, and some decades later for Tara (Tara probably didn't have to duck her head as much as I did).
@Blair - that one's still used in the triple tri. On the 3rd bike leg...