Video is somewhat aged and has been posted before.
In the US, the solicitation law does not take into account venue as Canadian law does.
And, as the video shows, the solicitation charge is plea-bargained down to disorderly conduct, probably because the solicitation may not hold up in court.
And of course, there is a combination of aggressive LE, combined with puritan culture.
The purpose, from LE's perspective, is simply to get the chicks on record, which will either scare them away from the job, or give LE more leverage for a future bust.