Driving into the Construction Detour, Again

I'm driving on a road that is under construction and detours through a freeway interchange. It appears that I am being directed in the opposite direction of where I want to go. I know that I will eventually be able to turn around, but not until I've driven all the way up the mountain pass and down the other side, about 9 miles one way. There are a bunch of construction roads, most empty. So I find myself wondering if I can cut through some of those, and just make my way over to the side of the freeway that is headed in the direction I actually want to go. I also seem to have the option of just getting off the freeway and staying around here for a while.

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ad astra per technica,
FF