Run away… fast. Just kidding, DON’T! You are not done yet!
Successful deployment only means that it started successfully, not that it actually works – functionally.
Give it a quick spin, trying out the major parts of the system that your team just updated.
If you have smoke tests, run them. After you’re finished, test it some more, using freestyle exploratory testing techniques .
Then, if it’s a publicly accessible application (not VPN or intranet) check it using a different connection, even your phone.
You could also ask some more people to test it that have different setups, different Internet providers, etc.
Because you should!