The Illinois vehicle code 625 ILCS 5/12-608 states that any violation of the exceeding the bumper height is a class C misdemeanor, it doesn't matter if its a state trooper or a city officer. Which is almost the same as a traffic violation. "A second conviction under this section is punishable with a fine of not less than $500." (its just another way for the state to make money).
If anyone needs a copy of the lift laws u can email me and I'll fax or mail you a copy.

Roger.