How the heck would the car know where there is more readily available parking?  It seems like parking is a whole other area of work that needs to be done.  It would need to:
  - Know local parking lots
  - Know that if a sign says &quot;full&quot; it can&#x27;t go in
  - If it&#x27;s not full, somehow grab the ticket out of the machine
  - Know the difference between parallel parking and other types
  - Know if a meter is expired
  - Pay for a meter if it is, or not if it isn&#x27;t
  - Tell how much time is left on a meter
  - Be able to read parking restriction signs (street sweeping, restricted time ranges)
  - Etc. etc.<p>Edit: tried hard to get the above to output as a bullet list, couldn&#x27;t get it to work.