Most women imagine a marriage proposal involving at least one of the following things: romance, flowers, a man on one knee, a beautiful ring, and declarations of love that make them giddy.* Most women explicit imagine said proposal not involving these words: "there's a warrant out for your arrest." ** At least he did get down on one knee
Regardless, Matt Van Vliet recognized that he and his bride to be met in police custody after a college party was broken up for underage drinking, and so he planned a proposal with the police when the couple was visiting their alma for a reunion. They were pulled over, the chief said he was under arrest, and then, in police custody, he proposed to her.
Luckily, she accepted, since the chief said the plan was to take him away if she didn't.
*Source: My wife.
**Source: It's fucking obvious.