Occupied foreclosure advice..??

[Dave Shellenberger]

I'm in the middle of buying a great deal from hubzu on a 4 bedroom home. We close in less then 2 weeks.

This week while getting my to do list in order i called the township to figure what the steps I needed to take to evict the current owner. I informed them I was buying the house in two weeks, and just mentioned to them the water and electric company had no current record of either of the utilities being on over at the home, however when I walked by the property to check it out the window A/C unit was on and also some lights. Long story short, this prompted the code inforcer to condemn the property and gave the owner 24 hours to get out. Great news for me- empty house, no eviction process and I saved $1200 that I offered the owners with cash for keys..
Now the police are calling me and telling me to change the locks and board up the one window which is busted, since I am not the owner yet, am I legally allowed to do so..?? I've tried getting in touch with the listing agent but he hasn't returned my calls/emails yet. It would be in my best interest to change the locks and secure the property ASAP before the copper goes MIA.. Thoughts...???