Well that sucks big time. I can imagine your pain.

Hindsight is 20/20 though -so nothing you can do about it now EXCEPT
call your insurance company. I would claim that - as all new parts will be a couple grand for sure.
Since you now know where NOT to park (no garage?) it is unlikely that it will happen again.
If the cover got damaged I would claim that too.
Count your blessing it wasn't a tornado as it might have very well ended up on someone's roof a block or more away.
To answer the question if it counts as dropping I would say NO.
The wind pushing it over is not a drop that you had anything to do with. JMO