In most advanced, civilized countries this behavior at a polling place would have SERIOUS legal implications,and would probably end with the result of arrest or at least heavy fining of the candidate's wife. I can think of this all over Asia, and in Latin America being handled seriously in this manner, very quickly (once in the Press like this).
I know here in Japan, where we gave them and helped develop for them their postwar Democracy, the actions of the First Lady a) would violate 公職選挙法における連座制は、同法251条の2から251条の4 (Public Election Law, relatinting to "Renzasei", Article 251 Section 2 to 4).
b) would not be papered over by the Japanese media or laughed off by the Prime Minister's office or spokesman.
She actually looked the best I have seen her in that orange jumpsuit posted in this thread.