A simple removal of spent blooms would surely protect from snow damage because there would be lack of surfaces for it to stick to. Aside from that, you just make the best shape of plant with the stems that are available. With a plant as mature as the one photographed, this is not too difficult. If you cut some stems back now (anything beyond just the spent blooms, that is), it may result in a reduced number of flowers next year. Ideal prune time is July at the latest.

Thank so much Springwood! Especially for the July time frame. Since it is almost the end of August now I will just try to remove spent blossoms. We are planning some bed renovations, and DH is set to remove some large shrubs to left, so I will put caution tape on Oakleaf to protect from his enthusiasm.