I have had them work around an FMIC without comment for fix a bad radiator hose. Depending on the issue the JB4 comes off on occasion, no point in sticking it in their faces.
Overall the service has been very good.
BTW anyone in the Triangle 100 octane at the pump in Cary. S Maynard & Kildaire Karms road, about $8.00 per gallon.