Now that we're finally getting rain (yeah California whining), I'm realizing that the wiper controls are nuts. Only autsense, not explicit intermittent. I guess ok except that Autosense is possessed. Out in light rain where on a conventional intermittent setting, I'd have it wiping every 3-5 seconds. It starts out something like that. Then it goes ape doodoo and runs at full speed with no pause. WTH? The only way it slows down is if I turn it OFF then back on. Any tricks to make it behave? Or is this a defect for the shop?