The incident occurred at the CVS store in Deer Park around 5:18 p.m. on Monday, July 8.
According to Suffolk County Police, the man used his phone to record underneath a woman's dress and then fled in a black Dodge Durango.
Suffolk County Crime Stoppers is offering a cash reward for information that leads to an arrest. Anyone with information about these incidents can contact Suffolk County Crime Stoppers to submit an anonymous tip by calling 1-800-220-TIPS, or online at www.P3Tips.com.
All calls, text messages, and emails will be kept confidential.
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