The only reason I decided not to get open pilot of the screen is too large. Anything that is larger than the rear view mirror can obstruct the driver's view according to the law here and can be ticketed. If a smaller screen is possible please let me know.
I live in Orlando, and have never heard of that rule. I have the eon-1 in my car, it is behind the mirror, and does not obstruct hardly anything. Consider those people with their cell phones in the dash area. The eon goes behind the mirror in my Model S