Can I park a for sale vehicle on your property for a week or so. As long as I move it and keep it out of handicap parking?

No

I think No.

No because you are trying to make money on their property and they tend to frown on that

I think so as long as it is not directly in front of the main entrance.

Probably not... but educated guess

No i dont think so i know they allow over night parking but abandon vehicles are towed so they would probaby see you vehicle as abandon