After they leave the airport, Jerry and Gino stop to talk with Billy Drake. Then Gino stays in front of the others, holding the overcoats, with Billy on his left-hand side and Jerry on his right. In the next shot Billy appears holding the overcoats and leading Gino with his right hand to the car. For this to be possible it would be necessary that them both had changed their places.
When they land at the airport there are slot machines in the lobby. Lake Tahoe airport is in California, not Nevada. Gambling was not legal in California.
The characters are staying at the former Horizon Hotel/Casino in Stateline, Nevada. However, the various scenes of when they are being driven in the limousine are not "linear" (to or from their final destination) and really just show highway scenes from all around Lake Tahoe, including parts of California.