The culprit (NSFW)

Close, but not quite.

“M4M” itself is gay slang meaning “man looking for man.” You’re right about “bear.”

So the license plate can really be interpreted as “Man looking for man (specifically, a bear” or, more juicy, “male looking to arrange a gay threesome with at least one bear” (hmu if this is you)

What workers?

A “s__ worker”?

Someone help, it is literally impossible to read this post with the giant censor bar.