Smooth, nip this in the bud right away!
I battled our landscaper last spring, 4 times that happened (although it was weedwacker and not only grass but tiny rocks too). I marched right over across the street where their shop is, and went off! Then it happened again, now came the threatening letter. I also documented every time it happened. After the 4th time and when Doug was getting ready to drive down there and take it out of their aZZez, I saw the owner.....AMBUSH! I told him, and he had a *serious* talk w/ the boys who cut and weed wack. They come over now and let me know that they are going to be working and ask me to move my Z first.
Then first time this spring season I heard the leaf blower, familiar sound yet not so. I had just detailed my Z the night before, about 4 hours, I look out and the ppl that landscape the BANK NEXT DOOR, were LEAFBLOWING DIRECTLY AT MY Z (and 6 other cars totalling well over $200K in vehicles). All the trash and crap from the parking lot towards baby... I took off towards the door at mach speed, flew out the door, promptly break a heel off my shoe, and almost break my ankle. After composing myself they were gone. Me clunk, limp, clunk, limp back to desk. When I saw them the next week I ambushed them too. They were less than accomodating and say to me "Well we have a 2 million dollar insurance policy so let us know if you get any damage in the future".....Oh I will, I will and I will take it out in BLOOD next time buddy!
Next time it happens, I will be calling the BANK and threatening them, since they pay the bastids!
I feel your pain is what I am saying. Go get them! They SUCK!!!! And they have rocks for brains so it takes them a while to GET THE DRIFT that these are not CARS they are AUTOMOTIVE CHILDREN!!!!!!!