Be on guard for what, and law enforcement is doing a sweep of what?
Probably like most of everyone here, I go to work and hang out with friends. I have friends from work named Dave, Tony, Mike, and Steve. I also have friends outside of work named Kira, Gia, Jamie, Bora, Zina, Emilia, and Jella. Maybe we have some of the same friends, the Bay Area isn’t that big.
When I hang out with my friends we do all sorts of things; watch TV, play video games, eat dinner, go shopping, talk about philosophy, help each other, exchange gifts, exercise, and sleep. Due to time constraints of my schedule and the schedules of my friends, we don’t always get to hang out for more than 1 or 2 hours.
There are some things my friends and I will not do. One of those things is we will never exchange, or negotiate the exchange of, monetary currency and/or items of value for sex. That might be illegal. Unlike two friendly consenting adults hanging out together on a private premise behind a locked door who have a reasonable expectation to privacy.