Was Lindsay Lohan's SCRAM Bracelet Set Off?

Numerous reports have surfaced that while Lindsay Lohan was at Katy Perry's MTV Movie Awards after party her SCRAM bracelet was set off. While Lindsay is Tweeting off the rumors, some reports say she has a hearing set with her judge today!

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A flashing red light was spotted near Linday's foot by party-goers on Sunday leading questions as to whether her SCRAM bracelet had been set off.

"There is a green light that comes on when the bracelet is communicating with the base station," Kathleen Brown, a spokeswoman for the SCRAM device manufacturer, explained to E! News. "But the bracelet and base station have to be within 30 feet of each other for that to happen."

"There is no indicator of any kind on the offender side if there is any kind of positive reading or a tamper," Kathleen  added. "There are no lights, no alarms, and no change in the testing schedule."

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However, a source confirmed to E! News that Lindsay's bracelet did go off and generated a report notifying the court.

Lindsay now faces a hearing with the judge today, but she's already on the defense — at least on her Twitter.

"My scram wasn't set off-Its physically impossible considering I've nothing for it to go off-All of these false resports are absolutely wrong," she Tweeted this afternoon. "This is all because of a FALSE accusation by tabloids& paparazzi& it is f--king digusting- I've been more than I'm compliance &feeling great."

"My friend Johnny put a light up bracelet on my boots and someone asked me if my SCRAM was lighting up RED," she explained. "Well it was a light up bracelet from the bathroom-regardless..paparazzi now see through black suede fringe Christian Louboutin boots? Wow!"

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Wonder what the judge will have to say? Stay tuned!