Licenses aren't contracts, and more to the point, licenses grant you the right to copy or distribute the software, you do not need to agree to them for use (this is a very common misconception). You have the right to use the software if you have been given a copy by someone with the right to distribute the software, unless you have signed a contract with them stating otherwise (EULAs and other such attempts to force a one-sided contract onto users generally have little weight in court).

People are so clueless about law, this comment is a great example. A licence is worth jack shit in a criminal case (which this would be, if prosecuted).