Contractually, yes, but I doubt he delivered that level of service to the riders. BARTs carelessness is funded by American tax payers who get nothing in return
Who is going to do the work? Obviously BART can't get enough janitors to work these shifts, hence why this guy is busting his ass 114hrs a week to make BART cleaner than it was.
salaries are both definitely determined by level of service provided and ought to be determined by level of service provided. both of these are true and definitely not outrageously false.