I few weeks ago I was driving around some back roads in my pickup when I encountered a young couple on bikes laden with camping gear. I stopped to chat with them briefly (I was jealous, they were out on their bikes while I was in my cage), when I noticed he had a small bag of trash on his BOB trailer. I offered to to take his trash, and they both were ecstatic -- thanking me repeatedly and profusely. Of course I also offered them an ice cold beer from my cooler, topped off their drinking water, and let them review my set of topo maps of the area. Anything for bikers, right?
So... I guess my suggestion would be to ask a passing motorist to take it off your hands. Can't hurt to ask.
That's cool that you offered beer, water and trash service -- I would do the same thing in that situation. Little gifts like that along the trail can be pretty magical every once in a while.
As a counterpoint, I'll share a story from when I toured the GDMBR in '04. We caught up to another cyclist who was touring the route solo. We rode with him the next day, and it quickly became apparent that he thought every car was out there to serve him.
He
flagged down a motorist to pawn his trash off on them. He did it in such a way that the motorist thought something was wrong. The motorist then only begrudgingly took the trash and drove off without so much as a word.
Later in the day I went to go filter water and he said, "why? There's a car coming, I'll just ask them."
That kind of attitude really irked me. Especially later on in the route when we met a few locals who were tired of cyclists always running out of water and asking for help. Makes it harder for people when they actually are in trouble.
So, I don't know, just something to think about. I'm not saying you shouldn't ask for help, but I try to be self-reliant unless someone offers it.