Phil D.
If you'd bothered to check your notams, you would know that Norwich was PPR on a Sunday only, between about 1400 and 1700
.
This was due to the fact that there were insufficiant ground staff to handle G/A and the larger than anticipated number of schedule and charter flights that operated in that period in the summer period. This notam was in force from the beginning of May until last week.
As has already been described, you could be parked anywhere on the airfield, which is why the minibus comes to meet you, and will take you back to the terminal.
Security is a fact of life these days, the screeners are only doing what they're told to do by the government, including checking that you are who you say you are, and removing pointy suspicious things from you if you don't leave them in the aircraft.
The landing fees aren't to different from surrounding airfields/airports, if you ring in advance and say you're a training flight, you'll get a hefty (50 -75%) discount.