Mcdonald's harassment

We have problems with the local McDonald's that put in a security beam on their premises. It goes off repeatedly for any flying leaf all through the night. This is in a residential area close to a block of flats. After repeated complaining and conversations with the manager and area manager, we are just being ignored. None of my communication through any of the relevant channels has got any response. We get no sleep at night and McDonald's doesn't have a care in the world!