We pull the pleated blinds down, but since the rear ones are now vertical blinds, they are open and tied (rubber bands) for transit so they don't swing all over. By next summer's season, all of the blinds will be replaced with verticals. Easier to operate, better light regulation, and the cat's love being able to stick their noses through them when they're closed.
On the subject of pleated day/night shades and adjusting the tension of the strings. While repairing one with a broken string, I found that simply loosening the screw on the tensioner knob was not enough since whoever installed it tied a knot that was nidden in it on both strings. No way to loosen the string without disassembling it and untying the knot. The only place a knot might be needed is near the end of the cords just so they don't get pulled completely through the tensioner and the blinds fall off.