Another solution, though not the best one, is to get off at exit 61 "Freiburg Nord" on the A5. The driver can make U-Turn and get back on the motorway (well, if it's not a truck). There's not really much space to stop, so you'll have to ask people stopping on the red light, most of them will be going to the city. Better don't go there if you're not alone, as you'll have to hop in very quickly.
== public Public transport ==
People who have the transferable monthly ticket ''RegioKarte Übertragbar'' can take along another adult on Sundays and holidays.