Calling for your car an hour before does exactly NOTHING. This place truly sucks. Icon parking in general, I find, sucks. No customer service at all. If you can park anywhere else, do it.
unless you want your blood pressure to rise VERY high, do not bother on a saturday. expect at least a half hour if not longer to wait for your car. stay away.
Not only can you lease a smart for $99 a month, you can also park it for the same price! $99 a month parking at all ICON garages for all smart drivers.
Do NOT try and park here on a Saturday from 2pm on unless you're a monthly - You'll be surrounded by Jersey and Long Island drivers in town for a show or "da club," and they'll always be full.