RebDoniel: even if you oppose wigs as a qualified head covering for married women, I don’t think you can say that all wigs are non tznius. If a wig is “eidel” and very likely partially covered (in those towns) it is less striking than a non married girl’s hair.
However, to live in a perfect town tznius-wise, you’d probably need to move to the Helbrans cult in Canada, which I wouldn’t recommend. It is however not an all or nothing game, so minimizing bad exposure is commendable. For you RD, I’d first suggest a move away from Manhattan, even if it’s hardly “contaminated” by women wearing wigs…