BIP-62 was withdrawn.  You may be confusing it with BIP-66, which didn't have low-S requirement.  There is also a relay policy for low-S but not a soft fork.  BIP-146 may fix it some day.

There are several discussions on reddit on r/btc.  I think BitClub mined three blocks with high-S and BitmainWarrenty (not to be confused with Bitmain) was also involved.  It also temporarily broke blockchain.info.