Speaking of which, providing you are actually located in Minnesota, here is what your state says on the subject:
[QUOTE=Minnesota]
169.18 DRIVING RULES.
Subdivision 1. Keep to the right. Upon all roadways of sufficient width a vehicle shall be
driven upon the right half of the roadway, except as follows:
(1) when overtaking and passing another vehicle proceeding in the same direction under
the rules governing such movement;
(2) when the right half of a roadway is closed to traffic while under construction or repair;
(3) upon a roadway divided into three marked lanes for traffic under the rules applicable
thereon;
(4) upon a roadway designated and signposted for one-way traffic as a one-way roadway; or
(5) as necessary to comply with subdivision 11 when approaching an authorized emergency
vehicle parked or stopped on the roadway.
[/QUOTE]
The law says that under normal driving circumstances you stay in the right lane unless passing.
Period.