Does this demonstrate that most people don't know their rights?

When I was 18 I was at a party where underage drinking was going on. Shortly after we heard that the cops were coming, most of us ran upstairs into a bedroom. The police were standing at the bottom of the stair and yelled "Everybody downstairs!!!" The vast majority (like 30 people) followed orders and walked downstairs to subsequently receive MIPs. I and a few others refused and stayed in the bedroom. We all never received MIPs. At the time I was just a dumb kid and didn't understand my rights, but I later learned that the cops didn't have the probable cause to go upstairs. If all of those kids simply shut up and stayed in the room, they could have avoided MIPs. Isn't this a lesson to show that most people don't know their rights and simply bow to the feet of police officers and believe their authority is limitless? Now when the police yelled "every body downstairs" did they really have the authority to FORCE everyone downstairs??? Maybe the police officer were out of line......What do you think?