I would give them a call and state your intentions prior to crossing through their overhead. No ATZ no problem. I doubt that you will be dealing with a veritable hornet's nest of microplanks.
Any more phone calls from the lady who thinks she owns the open sky and I would land there (close to as many parked microplanks as possible, flipping them all over
if you can) and tell her to F****FF face to face.
Communication is the answer here!
SB