Can someone please Please Help ME?

I own a 1998 Toyota Avalon XLS for the past 3 and
a half years now. April 7th I was stupid and left my
personal things like wallet and keys in my car at
Walmart on the West side of Great Falls Montana
for less than 15 min and of course I got what I
deserved. But the thing that is worse than having
your bank card and driver's license etc stolen is
your car keys, mail and house keys too. So this is
what I've done.....went onto carparts.com and
ordered a new ignition cylinder. Almost couldn't
pick it up, no proof identification and address (ie
drivers license)! I have the new ignition in but I
have a horrible feeling that its not starting due to
the security system! Please please please can
someone that truly knows how to help me get my
only life line to get back and forth from work, get
groceries and get another job back on her four
wheels again!!!!! You can literally call the Walmart
on Smelter Ave in Great Falls Mt to validate my
story!!! I just need my car!!! Picture is after my
friend got done drilling out the ignition cylinder