You will probably see this car at C&C...
http://i.imgur.com/Sz0VtXjh.jpg
http://i.imgur.com/GQj4MPZh.jpg
http://i.imgur.com/woQeTqVh.jpg
http://i.imgur.com/gNu7Afvh.jpg
http://i.imgur.com/DUJoQMAh.jpg
http://i.imgur.com/3HGlApch.jpg
I have experience with this. Is it still under City of Cbus jurisdiction?
Either way... typically they cannot park there for longer than 3 days, cannot be within 5 feet of your driveway, and I am pretty sure they cannot be over the curb. You can submit a 311 case or contact the local PD. They will issue a citation and/or mark the wheels but will probably give the person a chance to move their car.
computers do lots of math to "unlock" bitcoins. takes a great deal of time and computing power. generally not worth for the average Joe unless you get into is seriously (and get free/cheap power).
coins have value based on the bitcoin market kind of like stocks.