Tenants are not moving out on time and no contact.

[Jina Lee]

My tenants gave me 30-day move out notice, and they were supposed to move out by 7/31. It’s been two days but they still have their cars in the driveway, and have some stuffs in the house and garage. It looks like they removed most of their stuffs, so I guess they are still moving. Tried to contact them but no answer. 

They installed extra lock so I couldn’t get in and check if they moved their stuffs in the bedroom..

Since two days have passed already, and I have their move out notice signed and sent them text messages,  Can I have their cars towed and change the locks to get in?