Escaping org mode date properties

[Eduardo Suarez]

The next code snippet makes the entry to appear in the agenda:

* sample date code
#+begin_src org
SCHEDULED: <2015-02-16 Mon .+2d>
#+end_src

I have also tried without success:
- using begin_example,
- preceding with comma,
- special edit,
- starting the line with colon.

Any hint?

On the other hand, I wonder whether it is possible to make a subtree to be
ignored by the agenda views.