Changes

:I was at this spot in July 2010 and im not sure how great it is, one of the workers on the ground behind actually drove us to to the Service station further down the autobahn (which was excellent), because he said he saw a couple wait a whole day for no lifts the week before.

Alternative which takes you to the service area mentioned above.

Take S1 train to Rodgau-Weiskirchen then walk along Bahnhofstrasse until you reach Hauptstrasse turn left and then take first right into Shillerstrass. Follow Shillerstrasse until you reach into the forest and then take first road going right. This will take you straight to the Service area.