Not really. Larvae look a bit like maggots, but they don't wriggle, so would be useless for fishing. Also they would die very quickly if removed from the comb, which would be a heck of an undertaking. Much better to get some flies!
When I used to go coarse fishing the killer bait was allegedly wasp grub, but I never succeeded in getting any. I'm guessing you are being offered drone brood. I've heard of it being fed to fish in a garden pond so it sounds like a good bait to me.
The other possibility is wax moth larvae. Again probably a good bait.
Drone larvae is very soft skinned, I've tried blanching them in boiling water for varying lengths of time , then freezing but they always turn to mush on thawing !.
I now use them fresh by using an uncapping fork and sticking on a hair rig with a wee drop of super glue .
As for not moving , one well known bait is in fact 'dead maggot'.
Many moons ago they used "Cymag" a powder that gave off cyanide gas when it came into contact with moisture - nasty stuff. A desert spoon tied to a long cane deposited some at the nest entrance, 24 hours later all dead and a nest full of fantastic trout bait.