So sorry to read about your misfortune. Best wishes for your quick recovery.
The description of your spill got my attention. I wasn't riding during the years that I lived in El Paso and Southern New Mexico, but I remember the sand that's everywhere in that area. (Used to think that sand is the garnish for the land in that entire part of the country, particularly in the spring sandstorm season.) In retrospect, I'm almost relieved that I didn't have to cope with those conditions. When I bicycled the roads in New Mexico, I used to worry about drifted sand.
The most extreme example of your kind of spill I have observed was at the notorious Delaware Toll station of I-295. Spouse and I were waiting in our car, almost at the southbound toll booths, on a hot day, just after a rain. A guy on a bike in the adjacent lane was standing still, with at least one boot on the ground. ( I think he was double-footing, but I'm not certain.) I wasn't paying particularly close attention until I saw the bike suddenly slide laterally and go down. The rider escaped being pinned under it, though I suspect he was so embarrassed that he wished he had been. I had read about how slippery the pavement is at toll booths, but I never realized the severity of the hazard until then.
Anyway, I'm sorry you're hurt, but relieved that it's all repairable. Hope to hear you're ready to ride again, soon.
John