Had we kept the cameras, we'd have some political capital to get our neighboring munis (and like-minded munis in Chicagoland like Schaumberg) to take our ordinances and general orders as models. Now we don't. We're not any safer: our actions don't meaningfully change our residents exposure to ALPRs (and our residents weren't the targets anyways; people transiting through Oak Park were) because of their prevalence outside our borders.
What people don't get about this is that a lot of normal, reasonable people see these cameras as a very good thing. You can be upset about that or you can work with it to accomplish real goals. We got upset about it.