Full timers: How do you handle Postal Mail & Pkg deliveries (when park doesn't handle mail, etc). Living Full Time in the USA in our RV ?

We had our bank (Wells Fargo) insist on us providing a physical residential location address where we reside (our UPS mail center we used for years was now rejected), and threatened by the bank via Email letters: We were given 30 days to provide that OR have the funds in our checking and savings accounts FROZEN. Seriously. Nice bank, huh? Our state Dept. of Motor vehicles now also insists on a residential address; i.e., no postal box, or CMRA (commercial mailing center address).

We have no living relatives in the state and have autos registered in the state, which we're concerned about, also.

How do others handle these situations? Since a rented mailing address service is NOT acceptable? Suggestions wanted. Thanks

P.S. We told Wells Fargo to GTFO of our lives and moved to a Credit Union. But that only solves part of the problem. Thanks very much for ideas!