They are only on the glass. The front windshield mainly. I've washed the cars many times during the 8 months I've had it but this time it was the worst. The side glass, sun roof and rear window are okay though. I don't think I washed the windshield when I washed the car. That's the only thing I can think of. I tried Invisible Glass last night when I got home and that seemed to help. After 2 passes of all the glass, the waterspots do seem diminished. I'll just keep at it every other day until they're gone.
I saw the water mark thread you started. It made me lol.