Would I be violating your community's open container laws if I stopped to pick up a discarded beer can or vodka bottle while walking?

I just dropped my car off at the garage to get its annual safety inspection. The sun is out and the temperature was just below freezing so I decided to walk the two miles and enjoy the gorgeous day.
The snow is starting to melt, uncovering all kinds of nasties that have been buried in the feet of snow, including: snow plow markers, mail boxes, a deer carcass, and many beer cans and liquor bottles. I picked up a blue Skyy vodka bottle so it would not be broken and crushed by car tires and continued walking home. While walking it occurred to me I could very well be in violation of an open container law for carrying an open bottle of an alcoholic beverage while walking on a public street. Clearly I was not going to drink the disgusting liquid that was inside – likely melted snow and maybe residual vodka(shudder), but could some officer charge me?

In my opinion, Good Samaritans should not get in trouble for trying to help. Theoretically, can the parent who drives a bunch of girls scouts to a road clean up project be charged with endangerment or something else because they helped under-age scouts pick up open beer cans?

Does your state, community have similar laws? How do they exclude people who are just being nice and are cleaning up the neighborhood?