If it's so hard that parallel parking is difficult then it does sound like there's a problem, Even with it being harder it's not that hard to where you can't park.
I wonder if the fuse blew or the ground or something got all dirty. The ground is on the drivers side, a wire that is connected to the top of the strut tower, you can take a look at that, make sure it's tight and clean. Next I'd check fuses. I'm not sure which fuse it could be, but it should be in the underhood fuse box. Something worth checking out.