NJ SORA Holster Requirement

This is partly a legal issue, partly a gear question.  A 2015 law, "Santiago's law" requires all SORA armed guards to use a Level III retention holster.  Does not matter whether uniformed or plain clothes.  This is of course absurd, idiotic, etc., but this being NJ not surprising.  Questions, if anyone knows:  1) of course Level III is not defined in NJ law.  Standard definition is that a Level III holster needs to pass three retention tests after each of three successive retention devices is deactivated, so for example a snap/hood, a button release lever, and finally the passive retention provided by the holster itself.  Is that corrrect?  2) Based on my research, Safariland makes some of if not the best duty/retention holsters out there.  All are of course bulkier than anyone would want for concealed/plainclothes carry.  They make a few models with both the "ALS" and "SLS" retention devices that are classified I think as Level III and are also described as concealment holsters.  One being model 7367 7TS ALS/SLS, one of their newer models.  Bulky but seems like it would work under a jacket.  Does anyone have any familiarity with this holster and its Level III compliance or have any other recommendations for a less bulky Level III holster that is theoretically somewhat concealable?  Thanks.