Police are urging motorists to get a designated driver and to buckle up after tonight's Super bowl parties.Authorities say during Minnesota's super bowl weekends from 2006 to 2008, alcohol related crashes accounted for five of the seven motorists killed... and all five were not buckled up.During that same period, more than 14 hundred motorists were arrested for DWI.It is advisable to use a designated driver and to always wear a seatbelt.