I was at Laarbruch 72 -75 and I recall the Stauder man going door to door in quarters. His product certainly kept the vigilant front line forces regular.
The airfield there isn't totally abandoned because Mr O'Leary's aircraft fly there as a destination known as "Dusseldorf Weeze". As we all know, it's a good hour on the autobahn to reach Dusseldorf but then Mr. O'Leary's command of geography has always been rather whimsical.