What set off the trooper?

Rating: 9/10 (2 August 2005)

I'm sure that many have commented on this, but I haven't heard any discussion of this point. When the Buscemi character and his cohort were pulled over outside of Brainard (with Mrs.Lundegaard tied up in the back seat), was it the suspicion of bribe (Money was protruding out of his wallet when he presented his license and registration) that caused the trooper to ask Buscemi to "step out of the car"? Or was there something else? Also, the younger Lundegaard had a poster of a master accordion player on the inside of his doorway. Is accordion music a popular genre for the youth in Minnesota? or was a humorous take on the quaintness of the region?