Jonathan Wiesen, Driving Home on Friday for the Observant Physician: Toward a New Mindset: "R. Feinstein’s predominant belief is that one is not allowed a return journey home if the individual departs for the mission assuming that it will take a long time. If, however, it is the type of trip which is typically of a short duration, then one may return home even if it involves the violation of biblical prohibitions. If we were to prevent individuals in the latter case from returning home, that may cause them to be hesitant to attend to such situations in the future."
