Place a no trespassing/Please No smoking sign at the edge of the lawn.

Take photos.

Next, write a little note to the facility and explain to them that you would appreciate THEIR cooperation in keeping you home/area smoke free. Hand deliver it with some cookies to the head of the place.

Keep your cool- My dad used to say.....

Mejor tener un loco, y no dos!

Better to have one crazy person, not two!

Then if the shiat still hits the fan and you have to make a stand, you have a position that no one can challenge.

'Luck.