Maybe they thought me and bro were agro about the yellow's

When they have tested my DB readings (a few times now) its been at 1500rpm, 2500rpm and 3500rpm from a distance of about 3ft. I think they only tested it the last 3 times i've been over but only once was anything said (and definitely over 92db). That was the last time after i was whinging for waiting 3hrs in line!!!