Sign Stolen!

I put up a For Rent sign at the entrance to the condo complex. It was taken within 2 hours by the management association. Their policy is "No Signs." I would have known that if they sent me a package of their by-laws. I am not hopeful about the HOA as it is since the first day at the condo I got a letter from other residents asking me to join their "Complain about the HOA club"... I'll pass for now.