I am in the upper valley, and drive into Bby or Rmd for ladies that work at shops.
I leave very early as traffic is a big gamble, and I never ever want to be late. It could be 1.5hrs, or 3hrs.
I always message the handler, when I am 'in the area'. That is sometimes an hour early.
The few handlers I use often, know me, and also know I am totally cool going to grab a drink or shop or whatever, but I feel good communication with them is important.
If it were a direct call indy, I would probably not tell her I am there until 10min prior as she is likely occupied or getting ready. If I have a regular indy (not for a long time), then I communicate more, as we know each other better and we base it on their wishes.