Guys have dis connected the vacuum hose placed in a cup of brake fluid, mechanically move the wiper blades back and forth a few times. Let sit about 20 minutes, reconnect hose to intake, and start the engine. Do it outside as the engine might smoke a bit but the fluid will soften the leather paddles. Also stretch the springs on the wiper arms a bit, a little less tension helps them work better for getting by inspections. Also take a water squirt bottle to the inspection as wipers work a lot better on a wet windshield.