Excelent point
Unless he puts the parking lights on a separate circuit (simple switch and power) you are right
It could still be wired in the way I said, but then he needs to add a normally closed relay that will turn them off when the turn signals are turned on
BUT would be run with the parking lights on?
Post 1 makes it sound like when the headlights are on, the parking light circuit is off, which makes your last post kind of a moot point...i think