A few years back I bought a little mitsubishi mirage, brakes pulsed badly when I test drove, told dealer and he offered an additional $200 off price, so I took it. By the time i drove it 120 miles home, they were fine. These were disc, and when I took the wheels off to check you sould still see some discoloration where the pads had sat against one spot on the disc for a long period.
Drove it another 20,000 miles before replacing.
As RCMAN said, drive around some, a few somewhat firmer stops and it likely will ease.
