My back yard runs into a small industrial factory and they have recently erected a sign on the corner of their lot which shines into and onto my property. Per the code handbook a sign cannot reflect onto or into a residential property. There is nothing that states information on foot candles or measurement for industrial. The city advises the light can be 1 foot candle or lower at my property line which is not stated in the enforcement. The light shines on my yard and in all windows in my house. I have not measured the light but the city says it's less than 1 ft candle which is permitted. (I cannot see how that is the case when it lights up my home but...) I feel this has also violated my privacy and reduced my property value. What steps should I or could I take next?