Always use .3048 exactly (or the inverse) to convert meters to international feet but be sure to check with your juristiction.
Some local control networks are still in US survey feet and some even in NAVD29. !!
Arizona state plain switched to international feet years ago but some indian tribes still use the survey foot. All gps data is metric of course
I have seen descriptions in rods, poles, chains and varas but not one described by smokes yet.