score:14
Yes, the rental car companies at Palm Springs Airport are accessible even if you did not arrive by air (speaking from experience of having rented from PSP before)
In fact, I can't think of any airport in the US where this would not be possible.
There are also numerous rental locations around Palm Springs that are not at the airport.
Upvote:3
I'm not sure if it's the case in Palm Springs, but often, there are additional charges if you rent at an airport instead of another location. If you will be renting and dropping your car off away from the airport, it will often save you money to avoid the airport location.
Here is some information: https://www.wired.com/2014/12/silly-fees-rental-car-blame-local-politicians/ ... the airport fees are often called "concession fees". Also, https://www.desertsun.com/story/news/2017/04/26/rental/304971001/ states that there is an 11.1% concession fee charged at Palm Springs Airport.
Upvote:6
Rental car companies have desks in the airport because that's a big source of business for them. They will quite happily do business with anyone, and their yards are usually outside the airport boundary. Most will have offices and pickup arrangements in the city centre too.
Get some quotes online, pick a company, phone their local office and ask what arrangements they have. Some may even deliver to your hotel.