Seal warranties stay intact. Applying the wrong film to the wrong insulated glass unit can void a manufacturer's seal warranty. We check the glass spec against 3M's application chart before we quote — that's part of what being an authorized dealer means.
Curing takes days, not minutes. You'll see moisture haze and small water pockets for a week or two while the mounting solution works out. That's normal. Don't scrub it, don't panic, and don't let anyone tell you a fresh install is supposed to look perfect on day one.
One crew, start to finish. No subcontractors on your house. The people who quote the job are the people on the ladder.