Pretty sure you just leave your car in D and idle forward. I seriously doubt these asswipes are willing to get run over for their supposed cause...
I'm not willing to lose everything to take that risk. I'll just avoid these radicals which is getting harder now that the media and dems support these law breakers.
All of us know the two tiered system of pseudo justice means we get arrested, have no evidence allowed in court to support our side and end up in prison while the other side is portrayed as the new MLK,Jr. Henry David Thoreau or Gandhi and gets away with their crimes.
Law enforcement leaves it to vigilantes and then everyone complains.
Do your jobs and arrest those who impede traffic in this area. And most certainly they should have protected a Navy ship from insurrectionist woke types.