I would have thought that most of the objections would be ruled inadmissible. Unlike, say, the proposed developments at Luton, everything is within the the current boundary which is zoned for its current use. Just as you can't object to plans for housing across your back fence if the land is already zoned for that. Too bad if it spoils the view. As regards the entirely valid green agenda, surely the USP of SOU is its train station. There's no reason why most of its passengers need to come by car, which by increasing congestion and emissions could be a valid objection.
Perhaps the only longstay parking should be for electric vehicles?