Camping in National Parks during the shutdown

Hello all,

Anyone know if we can still camp regardless of reservation / government status right now?

I had a reservation for a campground in a National Park but it was auto-cancled and refunded (fine), but im wondering if anyone has experience showing up anyway? My thought is.... whose going to tell us to leave? Ha

Also, I know in most National Forests in the south east, you can primitive camp on your own. Does this apply?

Any info is helpful! Trying to salvage a camping trip rn! Thanks