Just so you guys know...this is all part of the lead up to Skynet...
It is only a matter of time...
Regarding the parking structure....Now I cannot confirm this but.... but I believe the license plates are not numbers in the conventional sense...but a bar-code..and in order to gain access/use to this facility the bar-code on your vehicle must match the bar-code on your DL, and the one encoded in your RFID/Digital Signature implant...
Not to worry though....FRSW monitoring and routine Bio-Metric Retinal ID (Minority Report) is still a few years off...
Welcome to the brave new world...

You do realize the next step beyond automatically parking your vehicle is automatically driving your vehicle...
In Other News: Unmanned Robotic Harbor Patrol Vehicle now moving into tertiary trials...

Lastly...tinfoil hats are completely ineffective against recent technology as this dated MIT study will surely confirm to the practical man...
On the Effectiveness of Aluminum Foil Helmets: An Empirical Study
http://people.csail.mit.edu/rahimi/helmet/