Rapper 2 Chainz and his entourage may need a refresher course on probable cause.

Oklahoma City police pulled over the musician's tour bus last week because of a broken taillight. Officers said they smelled an overwhelming odor of marijuana and could see smoke in the bus as the driver came out of the door, giving them probable cause to search the bus without a warrant.

But when one of the people on the bus was ordered to open the door, he refused and held a small copy of the U.S. Constitution up to the window, according to a probable cause affidavit filed Monday. All 11 people on the bus, including the driver, were arrested on obstruction complaints.

Affidavits supporting the arrests were filed this week, giving more details about the incident.