I think if you felt threatened that it was a good choice to park somewhere else. Did he ever apologize to you? If not, maybe he's trying to intimidate you. It doesn't sound like just an accident, but if for whatever reason he didn't see you and it was, you would think he wouId at least apologize. I would probably wait and see if anything else happens because if no one else saw it happen it's your word against his. I would document it though.
It's not overreacting to be alert and aware. As far as being transferred for one (let's just say) 'unprovable offense', personally I wouldn't. This is why: if he's in the wrong why should YOU have to be transferred?, also if he's that maliscious and you leave he's only going to do it to someone else, lastly unless you absolutely 100+% trust your company to protect you...they'll likely find some way to get rid of you and you may find yourself in a way worse working environment until you're so miserable you simply give up and quit. If you're overhearing sexist comments about you I would fully document all of those too.
If you feel like things are continuing to get worse I would call an attorney before reporting it to your employer, because just from my experiences employers only take anything and everything from you, but in the end they don't have your back or care about your safety or wellbeing.
Also, please please please meet with at least two attorney's before making any decisions. If someone forces you to make a decision that day or they won't take your case, run away!!! We were emotionally and verbally abused by a lawyer like that and it only multiplied the trauma in a major way. Choose someone that feels completely safe and someone you trust.
I wish you the best!