[JRL]

Re: Just had new front pads installed by dealer.... (R Crazy)

Yes you should complain.
A straight rotor SHOULD last at least 30K miles unless they have been abused
If yours were original I would toss the coin but since they were changed at 15K they should still be OK

 

[JRL]

Re: Just had new front pads installed by dealer.... (R Crazy)

Not necessarily. Give the dealer a shot, they may give you another set.
Your click is probably the axle spline but the dampeners give the brakes better stability. They're free, ask for them