Here is the full list of all 25 Traffic Cop achievements.
Directed 25 cars through traiffc
Directed 100 cars through traffic
Directed 250 cars through traffic
500 angry car driver crashes
1000 angry car driver crashes
Disintegrated 25 aliens
Disintegrated 100 aliens
Disintegrated 250 aliens
Disintegrated 500 aliens
Disintegrated 1000 aliens
Shot 25 ducks
Shot 100 ducks
Shot 250 ducks
Shot 500 ducks
Shot 1000 ducks
Destroyed 1 piece of city property
Destroyed 50 pieces of city property
Destroyed 500 pieces of city property
Destroyed 1000 pieces of city property
Destroyed 10000 pieces of city property
Caused an accident with food
Caused 10 accidents with food
Caused 50 accidents with food
Ate 25 times
Ate 500 donuts