Other than the obvious, not drinking to excess and driving, one way to avoid police contact and avoid a DUI is to not attract attention. This story
involves a Michigan gentleman crashing his snowmobile into a tree...in July. Now, the Colorado mountains can certainly have snow on the ground year round, Lansing, like Denver has no snow in July. Additionally, a jury is going to want this gentleman's attorney to explain the lowered inhibitions of this DUI defendant and why he was operating his snowmobile in the middle of summer.
Remember, of course, that he enjoys the presumption of innocence.