Those cars are (or were) touring the country for the last six weeks or so and will be going until mid July.
The schedule lists them as being in LA until the 18th so they may still be parked out at the El Cap. Here's the rest of their tour:
- June 11-18 Los Angeles, CA
- June 19 Phoenix, AZ
- June 21 San Antonio, TX
- June 22 Dallas, TX
- June 23-24 Tulsa, OK
- June 26 St. Louis, MO
- June 27 Erlanger, KY
- June 28 Cincinnati, OH
- June 29 Lexington, KY
- June 30 Columbus, OH
- July 5 Battle Creek, MI
- July 6 Oakbrook, IL
- July 7 Bloomington, IL
- July 8-11 Chicago, IL