Depending on the condition of the paint, this can take several days. The coating then takes only a few hours to apply, but then needs to be kept in an environmentally controlled space for 24 hours to cure properly. Once cured, most ceramic coatings will exhibit insane water repellent properties, a higher level of paint gloss, increased abrasion and chemical resistance, and additional UV blockers to prevent fading and oxidation of the paint. The car still needs maintenance, you hear people say "don't re-wax", but it's actually a good idea to apply a sealant designed for a coating once or twice a year to keep it up to date and well protected.
I'm going to share this information with her so she can look into her options for getting a ceramic coating to help with this. I have some product left in the bottle, should I consider another coating when I have access to indoor storage or should I be fine (given the 30 hours)? Once applied correctly, ceramic paint protection should keep your car's paint safe for a long time. Nano-coatings are designed to last for years (this varies depending on the manufacturer and the particular product, so be sure to check the specifications of the product you are using). There are a variety of hand-wash and no-rinse methods that are popular for maintaining the tile.
Incorrectly applying a high quality tile is like owning a Ferrari and driving it only in reverse. This coating, in general, is a liquid composed of ceramic nanoparticles that are suspended in a clear resin that, when applied, hardens into a virtually impermeable surface that chemically bonds to the vehicle to which it is applied. On the plus side, there probably aren't many people who jump at the chance to coat a car in 100°F, so this shouldn't be much of a problem. Ceramic paint coating eliminates the need for regular wax coatings and sealants on your car's paint.
A vehicle with a properly applied coat of Armor Shield IX is ready for just about anything Mother Nature throws at it. When considering one of these coatings, the pros and cons for the everyday detailer may be different than for a specialist detailer. On a more serious note, if you take the right supplies and use them in a controlled environment, you will be rewarded with a tile that will last for years. It is good to know that many brands of tile require tile to be applied by an authorised dealer for durability.
Just be aware that higher temperatures require smaller sections to be tiled at a time to prevent the tile from drying out too quickly between application and polishing.