So I'm going to jump in and CLARIFY some of the information here... The City of Temecula has shut down ALL STR's.
The area around & outside of the actual city are governed by Riverside County. They do allow STR's and cover so much real estate (Palm Springs), I'd be very surprised if they were to ever outright ban STR's.
I'd proceed with Caution on Murrieta as they have also been talking about banning STR's as well.
I'd also avoid any HOA's for the same reason, many of them are moving to restrict homeowners from STR's... I'd hate to have a client buy in an area with one plan and then be shut down because they are at the mercy of an entire committee.
Feel free to reach out if you want me to help dial in on the specific areas where you're able to AirBnB.
ALL of this points to a few issues, one is, WHEREVER you STR, put your own guidelines in and noise meters in place AND be a good neighbor.
So much of this could have been prevented had owners not allowed their rentals to be partypads that upset the community and moved PR against STR's in general. For a few $$ it's easy to monitor and enforce.