I'm going to respectfully disagree with the other responses here.
I used to live in Santa Rosa and the commute from Santa Rosa to Benecia is horrible. It is the commute direction (more than 1 hour) in the morning from Santa Rosa to Benecia and there are often accidents on all roads (101, 37 and 80).
Benecia is in Solano County, Santa Rosa is in Sonoma County. Jurisdiction appears to be in Solano County. Is that right?
Dad did move away and that may be a significant distance for a change in circumstance, especially when you couple it with the fact that he no longer exercises mid week visits.
It also depends on who is the judge for your case in Solano County. If the case is before Commissioner Haet, forget it. He is known to be unfriendly towards women. Judge Cynda Unger is even handed and pleasant in the courtroom. I don't know about the 2 other judges in the Family Law Division.
FYI All Family Law cases are heard in Fairfield now.