@micah68 We've posted some transportation options on the SCALE site.
LA is hard to navigate without a car, but if you're aren't planning a lot of driving other than getting to/from the airport Uber or a Shuttle service might be your best bet. Otherwise you're both paying for a car rental and parking just to keep the car parked for most of the 4 days.
Most folks will be getting in Wed night or Thursday morning depending on which pre-SCALE events they plan to attend. Eg UbuCon kicks on Thurday morning bright and early.