The cops just aren’t interested in dealing with the fallout of picking up people for petty / low level felonies. It both political and resources keeping them from getting involved.
That sounds like a police oversight problem, not a bail problem.
Let’s say I’m pissed and go sit on my ex’s porch. The cops pick me up for Tresspassing, I get released and go sit right back on her porch. If I’m not threatening or being violent, that’s a completely plausible situation.
If you’re not threatening anyone but you do it again, that’s a violation of your bail conditions (presumably they would have told you to stay away from her and her house/work/whatever), and you’d sit in jail until your hearing.