The ??? ???? linked above (here it is again):
http://www.hebrewbooks.org/pdfpager.aspx?req=1414&st=&pgnum=9&hilite=
does indeed say it’s a matter of tznius. The ??? ???? ??”? was neither irrational nor illogical, and not dishonest. My community, and my poskim, are okay with women driving, and my female relatives drive, but I respect those who don’t as having a legitimate tznius sensitivity. I’m sorry if you can’t.
Welcome back.