The problem with Morrisons is that previously there was goodwill on their part to allow fans to park there on Sundays, as it wouldn't have much of an impact on their business, considering they close at 4. For whatever reason the relationship between them and the club appears to have soured. There are also a few 4pm face-offs this time round on Sundays, so there might be an issue with Sunday parking there, let alone on Saturdays.