Do you know what time of the year that you saw them blooming? There are a number of shrubs that produce fragrant panicles but have different leaves (eg., lilacs, clethra), but timing of the bloom might help.

It seemed like it was more towards summer in June, possibly july. I know most of my shrubs, like lilac etc, but is there any type of fragrant viburnum that looks like these. The flower heads are NOT round tho, they are just like the shape and size of the oakleaf. I may have to make a trip to that hospital again and hope they have not changed their landscape!!!!!

There are fragrant viburnums (eg., burkwoodii, etc) but their flowers aren't really in the form of an upright panicle like an oakleaf hydrangea, ie., they are more rounded. I mentioned the clethra, which does bloom later in summer and has upright panicle blooms that look almost like the oakleaf hydrangea, but the clethra's panicles are smaller in size. Clethra alnifolia 'Hummingbird' has white panicles and they definitely are fragrant.

Here is a link that might be useful: Hummingbird clethra

Maybe two close together, leaf of one with flower of another poking through. Particularly in an institutional or commercial setting that is not being crutinized as closely by an interested party as a home garden would be a shrub may seed or creep into another, never be removed.

A few Oakleafs ARE fragrant. Alice is one. I bought one untagged years ago and kept wondering what smelled so good...just adore it...none of my others are fragrant.