That sounds like a good idea, but if I may add a little to it:
What is we wore holsters, but inside the holsters, inserted life size cardboard 2-d cut outs of firearms.
I think that would be even more productive.
Carried clear plastic cheapo water pistols.
I would carry a cheapo water pistol in my holster and hold a sigh saying "This is the amount of protection the MD State Police allows you to have to defend your family"
I think that would be very productive.
hell, I think 90% of the MD sheeple wouldnt even know what a real holster looks like when empty.