I know this area well.
if people park in that lidl, unless you register your reg number, at the checkout, you get a £60 fine for parking. I've not been done for a fine. But stopped using the store because of it. As sometimes the items I want are not in stock the cues are silly, do I walk without buying.
Some of the other car park users happily damage other cars and drive off without leaving details

But there local free parking on the side roads, go figure!
As for the stand, here and go there routine. I've had that a few times and now rarely follow direct instructions.
I prefer to speak to someone on the phone within a minute or two of the post code. Even if the result, is a follow-up text for the door/room number.
As walk for walking up to the alley and some one waiting, it's good reason to stop, make an assessment and walk as required.
I've walked several times before. When the lead up to entering a location didn't look, feel and the comms were not right.
I remembered 1 time, punting at a location I've been to a number of times (booking with different punting sims).
I gave some feed back to the W/G about being messed around. The W/G told me it her boss that done this and not for the first time. I've done several mixed reviews about the W/G at the location.
The last time I punted there and walked, I was made to wait but was able to get a good view of the street from where, I was waiting. A few mins before I got the go ahead to enter. I seen 3 Sergei's exit the flat walk to a car, opening the boot pull out some tools. Then get in and wait. They then sent a text and then I got one, telling me I to go to the flat.
I didn't like the look, feel and sound of the whole thing.
So I walked
Edit, on the phone not good way to post a long message