Like others have said, wash, clay bar it. I would go a step further and wipe the entire car down with a 50-50 mix of distilled water and rubbing alcohol to be sure you remove any contaminants - including wax/polish residue.
2014 535i - MSport, HUD, NAV, Prem, Surround View, Driver Assist
2008 550i (R.I.P.)
2005 530i - Prem, Sport, NAV
2006 Jeep SRT-8
2003 Infiniti G35 coupe