How far is VW of Coachella Valley from you? Are there RV parks you could recharge at along the way, if you brought your own level 2 EVSE with a NEMA 14-50 plug? I show 90 miles on Google maps and you don't have any mountain ranges to go up and over. 90 miles is easily doable if you turn the AC off and do 55 mph the whole way. I can do 110 to 115 miles at that rate. Just set the cruise control at 55 if you have one, and you'll make it. You might sweat a little due to heat, but you should make it.
As I've said before, driving faster, if you have a max range trip, doesn't save you any time, it costs you time. At level 2 charging with 3.6kwh, you can disharge 6x as fast as you can recharge, with a standard SE model Golf. So slow down, and make the distance on one charge.
https://api.plugshare.com/view/location/60319