Rather than risk fighting with the blade further, the Reeve plunges a stake through his own undead heart and enters self-inflicted torpor. The blade ceases to glow as Regina makes her way to his side. Meanwhile, the gas tank of one of the cars has been lit on fire and explodes, the force of the blast finishing off the already-collapsing second floor, the heat setting whatever remains ablaze, including Mairsil and his bastard Childe. Jayant, Charlie, and Markos all take cover, and though their Beasts rile at the explosion, the Men keep their heads, so long as they don't look back at the inferno. A slight breeze rustles the roadside trees, and the chirping of birds reminds the Kindred that daylight will be coming soon.
We're out of combat turns. So long as no one looks at the fire, no one has to roll for Frenzy. Regina and Arnold are across the highway from the motel and Regina can see the motel ablaze from that distance without need for a roll. However, if she tries to get closer, that will call for Fear Frenzy checks.
Figure out what you all want to do from here.