I think the thing with the Dartmouth Arms as opposed to sainsburys is that julietP's relatives are disabled and may not be able to get from sainsburys to the Dartmouth Arms, which is why I have also used DA's car park when taking my parents there. Have to say I did find the signage perfectly clear but then I am very nervous of scary signs about potential clamping/fines etc after forgetting to get my ticket in sainsburys and getting a ticket for 10 mins worth of parking (totally my own silly fault!!)