Odd. I did.
Back in the day when I was new, I did thoroughy track my perk status ("only 1.6 more, and I can fly that 163") and Reset Perks were about the only ones I got at that time (n00b in LA-7).
That was when I noticed at log-on that I had suddenly 25 perks per category more than I had when leaving the arena...
As long as you have been 12hours in the country which won the war, you will get them.
Once in a while I still get unexpected perks from EW/MW arena that way.