The less polishing the better. A few light swirls/scratches won't be noticed by anyone but the owner
I would do another coat right after you wash it next. If you just use quick detail spray there will still be silica dust particles on the paint. Then when you go to polish, it will rub these particles around and create more swirls.
Texas has some mean dust. Sometimes its hard to see but its always there waiting to F up our paint!