Whoever gets 95% much less 98% without quality chromatography should verify with a more expensive lab that uses competently-operated GC/MS or HPLC.
Can dispensaries sell distilled and/or chromatographically purified extracts, and, is there a market for them? Someone must be making and selling these, unless you can't, in which case they'd be sold as something else. Either way, the real deal comes with real proof - full analysis documentation from a serious lab.
And consider the implications of everything else that had to be removed to reach that concentration.