The no turning signs may seem small but they have big consequences at the intersection of National and Motor Avenue.
Neighborhood advocates say its a ticket trap and deter customers from local businesses in the area.
Lee Wallach of the Motor Association says "We get out there with a sign and warn because we don't want drivers to get a ticket."
From 7-10 weekday mornings drivers on National cannot turn north onto Motor Ave. Dot says, "It's a way to cut down traffic going through the cheviot hills neighborhood between the 10 freeway and century city to roughly 600 cars per hour."
Wallach says "This little shopping center and everything north of here gets no business."
But residents in Cheviot Hills say the traffic rule implemented roughly 6 years ago has made a difference but they say "there's still a lot of traffic coming through here."
Drivers caught making the turn are socked with a nearly 300 dollar ticket.
CompuTech computer repair store offers a free hour of service for customers who show them their ticket.
Ari Gozlan owns the store and says he's forked over a lot of money in free work, "Easily several thousand not to mention the missed opportunity we've had because of the traffic laws."
Local businesses are handing out postcards to customers urging them to petition local officials to change the law.
A spokesperson for councilman Paul Koretz says a traffic study will be done for the intersection but it hasn't been determined when it will be conducted.