Not specific to Yosemite, but the Alt National Park Service group posted general suggestions on facebook for dealing with parks during a shutdown:
PSA (Please Read & Share):
We need your help. The Trump administration came up with a plan to leave our national parks open with little to no staff. This leaves our parks unprotected! We need your help to monitor our national treasures until the government reopens!
Please remember:
1) That those working who are in the National Parks today are without pay and without the promise of back pay. They are trying to keep visitors and resources safe.
2) If there are concessions employees they will most likely not have the answers to all your questions.
3) If you plan to visit the parks during the shutdown, or your friends or loved ones do, please have alternative ways to dispose of trash and human waste in case trash cans are full and bathrooms are locked.
4) Please be respectful of others in campgrounds who have reservations that are not being honored. Please plan ahead so that you will know how to enjoy and respect the resource without feedback from rangers.
5) It is our right to respectfully document any resource degradation or other actions in this lapse.
6) Parks are open free, but this will leave them open to destruction and vandalism. There are very few rangers working to protect the lands.
7) If you see someone destroying the park please attempt to report it, take pictures, and document the situation.
Edited 1 time(s). Last edit at 01/20/2018 10:09AM by phantum.