How much lift will I get with a 2014 Ford F-150 leveling kit?

I live in Sacramento, but I’m planning on flying to visit a friend in Las Vegas for about a week. I typically park on the street, but I don’t want to leave my car there while I’m gone. What are my options for parking my car when flying out of the Sacramento Airport?

I’m looking at a rental property that’s a few miles away from where I live. It’s in a suburban area, so traffic isn’t too heavy. That said, I want to be able to hop over there to do repairs without taking too much time out of my day. How long does it take to drive 3 miles?

I bought a car with 3% financing and the dealer said that it was based on bank approval. Two days later, they called and told me I needed to bring the vehicle back, stating I could now get the car at 3.49%. Something seems fishy. Is this normal?