"Jim, I'm in trouble and need help with _____" "You know it's $200/day + expenses, right?" haggle-haggle-haggle "Ok, I'll see what I can do." drive-drive-drive-drive-drive hm-I'm-being-followed drive-drive-drive-drive-drive car-chase-clever-stunt-to-lose-tail drive-drive-drive find lead drive-drive-drive drive-drive-drive get-in-trouble-with-small-town-cops drive-drive-drive find another lead that reveals first lead was completely wrong drive-drive-drive drive-drive-drive get-in-somewhat-bigger-trouble-with-small-town-cops drive-drive-drive hm-I'm-being-followed drive-drive-drive-drive-drive car-chase-clever-stunt-to-lose-tail drive-drive-drive get-in-even-bigger-trouble-with-small-town-cops drive-drive-drive find yet another lead that reveals the first two leads were completely wrong drive-drive-drive drive-drive-drive hm-I'm-being-followed drive-drive-drive-drive-drive more-exciting-car-chase-with-gunfire get in what would be even bigger trouble involving multi-decade prison sentence except that by now the Real Antagonist has shown up, is shooting at everybody, is obviously insane, and so gets hauled off instead slow-drive-back-to-the-trailer client figures out clever way to get out of paying final scene with Rocky/Beth/Dennis/whoever... fade-to-black
Granted, it's set in LA. Still, the '72 Firebird should have gotten at least co-star billing.
Also seems like the '70s California cops were way lax, since I imagine nowadays getting caught at any single one of these stunts would be instant felony reckless driving conviction with multi-year jail time that would pretty much destroy your career at anything, and at the very least guarantee that you'd never be able to buy auto insurance ever again.