Personally speaking, if a priest ignored me I would ignore them. I don’t see the need to be ‘friends’ with the Parish priest, and I wouldn’t bother with them unless I needed to. I would also find another confessor if the Parish priest didn’t like me. Absolution is Absolution. Any priest can give it to you.
If a priest made it obvious they didn’t want to shake hands with me, I wouldn’t bother holding mine out, I would just walk past them. I’m not saying that to be vindictive. I’m saying it because plenty of other people will want to shake hands. If the priest doesn’t, he is the one with problem and I wouldn’t make it mine. If anyone, priest or not, made it obvious they wanted nothing to do with me, I would give them what they wants - no interaction. I wouldn’t be unkind, or wish them any harm - but I don’t believe in stressing myself out over someone who doesn’t like me - even if they are a priest. I’m sure there are plenty of others who do like and appreciate you. I would focus on them rather than those who don’t.