A number of years ago, we were tow-launching our hang gliders, using a remote county road here in rural Lassen County, CA.
We had about five gliders set up in a nice open field next to the road we'd been using as our LZ, when the nice CHP Officer stopped by... (first car besides ours we'd seen in awhile.)
"Where'd you guys fly from?" he asks. All my buddies look at me, the owner of the tow-rig trailer. "Well" sez I, "we launch 'em from the back of that trailer."
"No S#&t!!!" he says. "This, I gotta see!"
So, he grabs his video camera and, after a quick radio call to HQ, hops in the back of the pickup for a great view of me waving to his camera as I blast off from the tow rig, towline dragging me up to about 1,500; AGL.
He was stoked when I landed, and shook hands all around.
"Okay, be careful!" he said with a wave goodbye.
Not all of those guys are against us!
Don't try this in the City, tho...