Those are traffic infractions, unless one is driving 25 mph or more over the posted limit-then it is a misdemeanor in CO.
https://leg.colorado.gov/content/penalties-speeding-violations

Entering the United States without being inspected and admitted is a misdemeanor or can be a felony, depending on the circumstances... 8 U.S.C. § 1325
https://www.law.cornell.edu/uscode/text/8/1325#a