Is there room for a couple of flower pots? I have a patch of stone chips at the end of my drive and kept finding dog dirt! I put down a couple of pots with pansy and primula and hey presto the dogs (or their owners!) seem to respect it as part of my property and keep out.
Alternatively you could buy chain fencing (it is really plastic and quite cheap) which you could pull over when you go out and then upclip to let you drive onto your own bit.



