Updated: To D.E.A.:

Minnesota plates:
773-K...(possibly KRZ or KRC)
Brown, old car
C-470 Eastbound, 1 mile from Bowles exit, almost side swiped me with his left front fender, swerving, road raging at 10 a.m.

10:20 a.m.
West Bowles/C-470 intersection area in Littleton, next to Chase bank
Beige sedan, Colorado license plates:...JNO
Caucasian male, late thirties, 5'10, 200 pounds, round face, black, long handlebar moustache
Tailgated and roadraged, also criminally stalked me, turned left before Chase bank, kep going straight past the gas station