He circles back to taunt a little before letting loose on the throttle
One of the fans at an event in Bulgaria managed to get some footage of a professional rider just before the police show up and ruin the fun for the fans. The biker on the other hand continues his display of tricks, even circling back to taunt the police who sit patiently. Then spinning his back wheel he leaves a pit of smoke for the police car to sit in as he takes off at very high speeds. The police don't even bother chasing.
Lets leave you to decide who won this standoff. Watch here