Yes, clearly it's hard for people as busy as you are to shop on the parade when you can't get there easily on a Saturday or during the day. Perhaps if you and others in your position started a thread on ths site and then approached Hills & Parkes, for example, and asked them for even one late opening a week, and promised to support them, they and other shops would gauge the level of potential business they are losing.
I love Budgens, too and their owner has been really supportive of businesses in our parade and Brockley Rise, advising them on shaping up and improving their lines. Some have listened, but others haven't got the message. The off-licence has competition from the Brockley Supermarket, Concards and Bubbles as it is, so to stop accepting cards makes no sense business-wise to me.