I try to listen to kirtans when commuting to work since it does seem that I am less likely to 'let myself go off' at someone. It still happens, I am still full of demoniac qualities, but my Gurudeva says in everything you do, try and connect it with Krishna and you will be benefitted, so I figure driving is included in that. BTW my understanding is we don't chant the Name like we are doing it, it chants us when we become proper receivers (being tolerant, humble, offering honor without desiring it for ourselves). Srila Sridhar Maharaj said "Then, the soul inspired, recapitulates, sending vibration back into the intelligence, mind and so on-the whole process inverted-out to my external tongue and we say, 'Hare Krsna!' That Hare Krsna is He, and we dance in ecstasy." Jaya Guru Maharaj! So all I know is nama aparadha because I want honor, am intolerant (driving sure demonstrates that!) and definitely am not humble. Maybe one day I'll get to nama abhasa with the mercy of the vaisnavas. My consolation is at least I don't only have one life to reach Home.