Originally Posted by
PDILLM
Just a warning. Check the Sunpass every time you get in the car to make sure it stays closed (un chargeable) if you were not planning to use it. I ensured it was closed when I first rented the car and had been paying cash every day. On my final day (and on the way to the airport) I went to pay and the Pass attendant said I had already paid via my pass. Sure enough, it had somehow joggled open enough to have paid the toll. End result is toll "rent" by Avis for my entire rental and one toll.

I don't know how the FL tags are affixed to the windshield, but in CA and on the east coast, I usually pull the Avis box off the windshield entirely, store it in the armrest and put my personal tag on the Velcro mount. Even if the box jostles open while in storage, it's usually deep enough in the vehicle that the tag won't read (and my tag would take priority anyway).