Newsflash: Can a home investor that just closed on our house have us physically removed or locked out of our home if it’s taking a little longer to get moved than originally thought?

We closed on our home on June 3rd. The original was to be out 7 days after that. Do to illness, weather and some financial challenges we are still here and realistically won’t be able to leave for a few more days. The investment company held back $10,000 and told us that we would be charged $100 per day we stayed past the 7 days. We are aware of this and okay with it. They are now threatening legal action and telling us that they will have the sheriff lock us out and we’ll loose everything we haven’t gotten loaded onto our trailer. Can they do that?