"It's unconstitutional in terms of being vague. It's simply unenforceable," Catherine Mish, city attorney, said of the 38-year-old law.
The City Commission is expected to strike the wording from the code, the Grand Rapids Press said Tuesday, noting assault, battery, molestation and endangerment of life remains illegal.
Mish has been scouring the city code for archaic rules worthy of removal.
She said the law against disobeying a police officer does not apply to motor vehicles, apparently making it legal to keep driving if pulled over by a police officer.
The law against leaving a restaurant without paying is also muddy, Mish says, noting such cases are currently prosecuted under existing language that prohibits people from taking or removing property not their own.
She has not, however, proposed a change in a 1960s-era law prohibiting the carrying of guns in the city, an ordinance that has prompted demonstrations by gun advocates, the newspaper noted.
2014: NFL Cheerleaders [PHOTOS]
Teen 'Trojan Man' seeks apology from school