Apropos the contemporary use of acacia by Freemasons, this doubtless happens but never in an official capacity. We as Masons are charged with the task of peacefully submitting to the laws of the land wherein we reside. Although, I don't doubt that there are a number of Masons who meet privately to experience the power of the acacia.
There is also a splinter group of the ayahuasca church Uniao do Vegetal that claims for itself Masonic descent. Led by Meistre Joaquim Jose de Andrade Neto, the group goes by the name Centro Espirito Beneficente Ordem Masonica Rosaluz.