Most cemetery’s have rule’s and time limits on thing’s left for your loved one’s. But,if you’ve paid for a plot of ground its your’s. Tell them you will care for the grass and remove flowers after the holidays. Here in Wyoming people have been putting solar light’s and plant hangers on their loved one’s grave’s and it looks pretty cool at night. You might try going over his head and try to talk to his boss. Sending some Clown love your way! Good luck and God bless.