You have good advice. The drywall guys just use a garden hose & mist it until it's wet, scrape it & let it drop onto some thin plastic. Don't scrape anything that is dry- it's the particles in the air that if asbestos are potentially harmful.
Wear a mask & take a cool shower after. Hot shower opens your pores & allows
fiber in. Do it with the door down- your neighbors & passer bys don't need to see you. Dispose of it in your trash can.
What ever you do DON'T call any agency for advise (caller I.D.) if you do it the way they would require it will cost a LOT plus there would be a record of your house having had asbestos (if that's the case).
When in doubt follow the Schultz method: