Pulled over by a toll plaza motorcycle cop
"We were hoping to start sooner but, you see, it's rather hard to find a truck."
These are two separate scenes, just before and just after replanting the sick tree in the woods. In the first scene, Maude (driving a stolen pickup) speeds through a toolbooth without paying, is pulled over by a cop, and then does circles around him before driving off. In the second scene, Maude is pulled over by the same cop, who this time forces them to get out of the pickup. While he's writing it up, they steal his motorcyle and drive off.
This was perhaps my greatest victory during the Project. I had low hopes for this scene, knowing that it had been filmed in the vicinity of the Dumbarton Bridge toll plaza, and knowing that the Dumbarton Bridge was completely replaced by a new span in 1984. However, by deliberate comparsion of scenes in the movie and views in Google Street View, I tracked the scenes to a near degree of certainty to Marshlands Road in Newark. However, the presence of the Dumbarton tollbooth on this small side road was a puzzlement. But then Gordon did some excellent sleuthing with old USGS maps, and discovered that the former Dumbarton Bridge fed into what is today Marshlands Road. Here's that USGS map on the left, and the map overlaid with today's road network on the right:
You can see that the new Dumbarton Bridge access road (Route 84) diverges from the old roadbed just south and east of the word "REFUGE" in pink. Here's a closeup of those diverging roads that shows it even better:
Having identified the locations and verified them using the USGS maps, the rest was easy. Here I am standing at the spot where Maude is pulled over the first time:
Here's the view down the road as Maude is being pulled over after the tree-planting... almost right across the road from the first pullover spot:
And finally, here's the second pullover spot, where Maude and Harold steal the motorcycle. At first glance, this spot seems wrong, because the marshy land and water divisions in the low area beyond the street don't seem to match. But these are salt evaporation ponds, where the contours of the land are constantly changing:
Fun fact: The motorcycle cop is played by an uncredited Tom Skerritt.