i don't think its illegal to
have them, but its illegal to patch the dll to activate them. Let me explain,
everybody has these bots , because they are integrated into the CSS dll. But when you activate them, its a different story. Its kinda vague in this area, but i think the EULA prescribes you cannot modify any binaries.
I'd say, wait for the official 'release' of the CSS bots. And just don't ask support about them as long as they are not officially released.
In the meantime have fun. (Or play HL2DM, which is imo much more cooler)