Greetings everyone, I was on my way home from work when, twenty minutes later, I noticed my window wiper was hanging down and wiping below the badge when I heard this strange noise. I took the cap off to find that the bolt needed tightening. I did that, but it kept wiping down the same way. I reset it in place and tightened it again, but now the bolt just spins and won't loosen. It's still wiping down the same way. I tried to remove the bolt, but it just spins, as if the treads had worn away. I'm at a loss. Any advice would be greatly appreciated.