The worker failed to completely remove all tint, when asked to correctly remove the tint and glue, the worker became agitated and threatening. On 7 April, 2013, I arrived at the The Tint Man, Solar Tint Specialists at 7404 B&A Blvd, Glen Burnie Maryland, 21012, to have the tint removed from my vehicle. The worker gave me an approximately wait time of two hours to completely remove the tint from a four door Sedan. After 5 hours of work, he called, to inform me he completed the tint removal. Upon my arrival, there was still a significant amount of tint and glue remaining on the windshields. I waited another hour and a half, at which point, he stated he was going home and that I would have to pay to take the vehicle, despite the incomplete job. After informing the worker I would not pay for incomplete work, he held up the straight blade razor, he was previously working with, and stated "I don't know how they do things in Texas, but here in Maryland, you're gonna pay or lose your car". I locked myself in a vehicle and called the police, the police responded and observed that the worker was high, but did not place him under arrest. Because the shop completed some of the work, I had to either pay to retrieve my vehicle at which point I could file a lawsuit to reclaim the cost, or I would have to leave my vehicle until the owner of the property arrived on scened. I had the police officer, CPL H. file a note as a reference, and wait until I was able to pay the cost and leave the shop.