On a street I take home form school, there is a police officer always clocking in the same spot which happens to be a school zone. The school speed light is flashing yellow, but on the sign it says "When children are present," not "When light is flashing." I pass through there at 3:10 PM everyday. Pre-K and Kindergarten kids are let out at 3:00 PM and their buses are gone by the time I go past and no children are visible. The remaining students (grades 1-5) are let out at 3:25 PM. If I were to go the regular speed limit of 40 MPH would I be able to successfully contest a ticket if I received one?