New job - delivery driver in London

[DeliveryDriver01]

My boyfriend’s about to start a new job as a delivery driver (Evri/Yodel type role), using his own car. It’s likely to be in zones 1-3, in areas which include LTNs & restricted parking.
I’m worried about him getting LTN & parking fines because he’ll have to drive in so many different locations, many where he won’t know what the restrictions are & he’ll be on a time/delivery pressure.
Does anyone have any first hand experience of doing a similar job? What’s the likelihood of fines?

Name change for privacy.

He must know where the restrictions are else he will get a ticket or a fine. All this info is available openly online. And on roadsigns.
He will need to pay to travel into the central zone each day, unless he actually lives in it. But you can buy that online in bulk I think. His employer should have guidance about this also.
But ultimately if he knows how to drive then he must know how to avoid tickets and fines. If he doesn't obey the rules then he's not suited to working as a driver.